AGREEMENT AND PLAN OF REORGANIZATION
 

    Agreement and Plan of Reorganization (Agreement) made as of the     day of
October, 1998, by and between Prudential Municipal Bond Fund (Municipal Bond
Fund)--Intermediate Series and Prudential National Municipals Fund, Inc.
(National Municipals Fund) (collectively, with Intermediate Series and Municipal
Bond Fund, the Funds and each individually, a Fund). Municipal Bond Fund is a
business trust organized under the laws of the Commonwealth of Massachusetts and
the National Municipals Fund is a corporation organized under the laws of the
State of Maryland. Each Fund maintains its principal place of business at
Gateway Center Three, Newark, New Jersey 07102. Shares of National Municipals
Fund are divided into three classes, designated Class A, Class B and Class C.
Shares of Intermediate Series are divided into four classes, designated Class A,
Class B, Class C and Class Z. Municipal Bond Fund consists of three series, one
of which is Intermediate Series.

 

    This Agreement is intended to be, and is adopted as, a plan of
reorganization pursuant to Section 368(a)(1)(C) of the Internal Revenue Code of
1986, as amended (Internal Revenue Code). Upon receipt of such representations
from each of the Funds as Swidler Berlin Shereff Friedman, LLP may require,
Swidler Berlin Shereff Friedman, LLP will deliver the opinion referenced in
paragraph 8.6 herein. The reorganization will comprise the transfer of the
assets of Intermediate Series in exchange for shares of common stock of National
Municipals Fund, and National Municipals Fund's assumption of such Series'
liabilities, if any, and the constructive distribution, after the Closing Date
hereinafter referred to, of such shares of National Municipals Fund to the
shareholders of Intermediate Series, and the termination of Intermediate Series
as provided herein, all upon the terms and conditions as hereinafter set forth.

 
    In consideration of the premises and of the covenants and agreements set
forth herein, the parties covenant and agree as follows:
 

1.  TRANSFER OF ASSETS OF INTERMEDIATE SERIES IN EXCHANGE FOR SHARES OF NATIONAL
    MUNICIPALS FUND AND ASSUMPTION OF LIABILITIES, IF ANY, AND TERMINATION OF
    INTERMEDIATE SERIES

 

1.1  Subject to the terms and conditions herein set forth and on the basis of
the representations and warranties contained herein, Municipal Bond Fund on
behalf of Intermediate Series agrees to sell, assign, transfer and deliver the
assets of Intermediate Series, as set forth in paragraph 1.2, to National
Municipals Fund, and National Municipals Fund agrees (a) to issue and deliver to
Intermediate Series in exchange therefor the number of shares of Class A, Class
B and Class C shares of Common Stock in National Municipals Fund determined by
dividing the net asset value of the Intermediate Series allocable to Class A,
Class B and Class C shares of beneficial interest (computed in the manner and as
of the time and date set forth in paragraph 2.1) by the net asset value
allocable to a share of National Municipals Fund Class A, Class B and Class C
shares of Common Stock (computed in the manner and as of the time and date set
forth in paragraph 2.2); to issue and deliver to Intermediate Series in exchange
therefor the number of shares of Class A shares of Common Stock in National
Municipals Fund determined by dividing the net asset value of the Intermediate
Series allocable to Class Z shares of beneficial interest (computed in the
manner and as of the time and date set forth in paragraph 2.1) by the net asset
value allocable to a share of National Municipals Fund Class A shares of Common
Stock (computed in the manner and as of the time and date set forth in paragraph
2.2), and (c) to assume all of Intermediate Series' liabilities, if any, as set
forth in paragraph 1.3. Such transactions shall take place at the closing
provided for in paragraph 3 (Closing).

 
                                     1


1.2  The assets of Intermediate Series to be acquired by National Municipals
Fund shall include without limitation all cash, cash equivalents, securities,
receivables (including interest and dividends receivable) and other property of
any kind owned by such Series and any deferred or prepaid expenses shown as
assets on the books of such Series on the closing date provided in paragraph 3
(Closing Date). National Municipals Fund has no plan or intent to sell or
otherwise dispose of any assets of Intermediate Series, other than in the
ordinary course of business.

 

1.3  Except as otherwise provided herein, National Municipals Fund will assume
all debts, liabilities, obligations and duties of Intermediate Series of
whatever kind or nature, whether absolute, accrued, contingent or otherwise,
whether or not determinable as of the Closing Date and whether or not
specifically referred to in this Agreement; provided, however, that Intermediate
Series agrees to utilize its best efforts to cause such Series to discharge all
of the known debts, liabilities, obligations and duties of such Series prior to
the Closing Date.

 

1.4  On or immediately prior to the Closing Date, Intermediate Series will
declare and pay to its shareholders of record dividends and/or other
distributions so that it will have distributed substantially all (and in any
event not less than ninety-eight percent) of each of such Series' investment
company taxable income (computed without regard to any deduction for dividends
paid), net tax-exempt interest income, if any, and realized net capital gains,
if any, for all taxable years through its termination.

 

1.5  On a date (Termination Date), as soon after the Closing Date as is
conveniently practicable, but in any event within 30 days of the Closing Date
Intermediate Series will distribute PRO RATA to its Class A, Class B and Class C
shareholders of record, determined as of the close of business on the Closing
Date, the Class A, Class B and Class C shares of National Municipals Fund and to
its Class Z shareholders of record, determined as of the close of business on
the Closing Date. The Class Z shares of National Municipals Fund received by
Intermediate Series pursuant to paragraph 1.1 in exchange for their interest in
such Series, and Municipal Bond Fund will file with the Secretary of State of
The Commonwealth of Massachusetts a Certificate of Termination terminating
Intermediate Series. Such distribution will be accomplished by opening accounts
on the books of National Municipals Fund in the names of Intermediate Series'
shareholders and transferring thereto the shares credited to the account of
Intermediate Series on the books of National Municipals Fund. Each account
opened shall be credited with the respective PRO RATA number of National
Municipals Fund Class A, Class B and Class C shares due such Series' Class A,
Class B and Class C shareholders, respectively. Fractional shares of National
Municipals Fund shall be rounded to the third decimal place.

 

1.6  National Municipals Fund shall not issue certificates representing its
shares in connection with such exchange. With respect to any Intermediate Series
shareholder holding Intermediate Series receipts for shares of beneficial
interest as of the Closing Date, until National Municipals Fund is notified by
Municipal Bond Fund's transfer agent that such shareholder has surrendered his
or her outstanding Series receipts for shares of beneficial interest or, in the
event of lost, stolen or destroyed receipts for shares of beneficial interest,
posted adequate bond or submitted a lost certificate form, as the case may be,
National Municipals Fund will not permit such shareholder to (1) receive
dividends or other distributions on National Municipals Fund shares in cash
(although such dividends and distributions shall be credited to the account of
such shareholder established on National Municipals Fund's books pursuant to
paragraph 1.5, as provided in the next sentence), (2) exchange National
Municipals Fund shares credited to such shareholder's account for shares of
other Prudential Mutual Funds, or (3) pledge or redeem such shares. In the event
that a shareholder is not permitted to receive dividends or other distributions
on National Municipals Fund shares in cash as provided in the preceding
sentence, National Municipals Fund shall pay such dividends or other

 
                                     2


distributions in additional National Municipals Fund shares, notwithstanding any
election such shareholder shall have made previously with respect to the payment
of dividends or other distributions on shares of Intermediate Series.
Intermediate Series will, at its expense, request its shareholders to surrender
their outstanding Intermediate Series receipts for shares of beneficial
interest, post adequate bond or submit a lost certificate form, as the case may
be.

 
1.7  Ownership of National Municipals Fund shares will be shown on the books of
the National Municipals Fund's transfer agent. Shares of National Municipals
Fund will be issued in the manner described in National Municipals Fund's
then-current prospectus and statement of additional information.
 

1.8  Any transfer taxes payable upon issuance of shares of National Municipals
Fund in exchange for shares of Intermediate Series in a name other than that of
the registered holder of the shares being exchanged on the books of Intermediate
Series as of that time shall be paid by the person to whom such shares are to be
issued as a condition to the registration of such transfer.

 

1.9  Any reporting responsibility with the Securities and Exchange Commission
(SEC) or any state securities commission of Municipal Bond Fund with respect to
Intermediate Series is and shall remain the responsibility of Intermediate
Series up to and including the Termination Date.

 

1.10  All books and records of Intermediate Series, including all books and
records required to be maintained under the Investment Company Act of 1940
(Investment Company Act) and the rules and regulations thereunder, shall be
available to National Municipals Fund from and after the Closing Date and shall
be turned over to National Municipals Fund on or prior to the Termination Date.

 
2.  VALUATION
 

2.1  The value of Intermediate Series' assets and liabilities to be acquired and
assumed, respectively, by National Municipals Fund shall be the net asset value
computed as of 4:15 p.m., New York time, on the Closing Date (such time and date
being hereinafter called the Valuation Time), using the valuation procedures set
forth in Intermediate Series' then-current prospectus and Municipal Bond Fund's
statement of additional information.

 
2.2  The net asset value of a share of National Municipals Fund shall be the net
asset value per such share computed on a class-by-class basis as of the
Valuation Time, using the valuation procedures set forth in National Municipals
Fund's then-current prospectus and statement of additional information.
 

2.3  The number of National Municipals Fund shares to be issued (including
fractional shares, if any) in exchange for Intermediate Series' net assets shall
be calculated as set forth in paragraph 1.1.

 
2.4  All computations of net asset value shall be made by or under the direction
of Prudential Investments Fund Management LLC (PIFM) in accordance with its
regular practice as manager of the Funds.
 
3.  CLOSING AND CLOSING DATE
 

3.1  The Closing Date shall be December 4, 1998 or such later date as the
parties may agree in writing. All acts taking place at the Closing shall be
deemed to take place simultaneously as of the close of business on the Closing
Date unless otherwise provided. The Closing shall be at the office of National
Municipals Fund or at such other place as the parties may agree.

 

3.2  State Street Bank and Trust Company (State Street), as custodian for
Intermediate Series, shall deliver to National Municipals Fund at the Closing a
certificate of an authorized officer of State Street stating that

 
                                     3


(a) Intermediate Series' portfolio securities, cash and any other assets have
been transferred in proper form to National Municipals Fund on the Closing Date
and (b) all necessary taxes, if any, have been paid, or provision for payment
has been made, in conjunction with the transfer of portfolio securities.

 

3.3  In the event that immediately prior to the Valuation Time (a) the New York
Stock Exchange (NYSE) or other primary exchange is closed to trading or trading
thereon is restricted or (b) trading or the reporting of trading on the NYSE or
other primary exchange or elsewhere is disrupted so that accurate appraisal of
the value of the net assets of Intermediate Series and of the net asset value
per share of National Municipals Fund is impracticable, the Closing Date shall
be postponed until the first business day after the date when such trading shall
have been fully resumed and such reporting shall have been restored.

 

3.4  Municipal Bond Fund shall deliver to National Municipals Fund on or prior
to the Termination Date the names and addresses of each of the shareholders of
Intermediate Series and the number of outstanding shares owned by each such
shareholder, all as of the close of business on the Closing Date, certified by
the Secretary or Assistant Secretary of Municipal Bond Fund. National Municipals
Fund shall issue and deliver to Municipal Bond Fund at the Closing a
confirmation or other evidence satisfactory to Municipal Bond Fund that shares
of National Municipals Fund have been or will be credited to Intermediate
Series' account on the books of National Municipals Fund. At the Closing each
party shall deliver to the other such bills of sale, checks, assignments, share
certificates, receipts and other documents as such other party or its counsel
may reasonably request to effect the transactions contemplated by this
Agreement.

 
4.  REPRESENTATIONS AND WARRANTIES
 

4.1  Municipal Bond Fund represents and warrants as follows:

 

    4.1.1  Municipal Bond Fund is a business trust duly organized and validly
    existing under the laws of The Commonwealth of Massachusetts and
    Intermediate Series has been duly established in accordance with the terms
    of Series Fund's Declaration of Trust as a separate series of Municipal Bond
    Fund;

 

    4.1.2  Municipal Bond Fund is an open-end, management investment company
    duly registered under the Investment Company Act, and such registration is
    in full force and effect;

 

    4.1.3  Municipal Bond Fund is not, and the execution, delivery and
    performance of this Agreement will not, result in violation of any provision
    of the Declaration of Trust or By-Laws of Municipal Bond Fund or of any
    material agreement, indenture, instrument, contract, lease or other
    undertaking to which Intermediate Series is a party or by which Intermediate
    Series is bound;

 

    4.1.4  All material contracts or other commitments to which Intermediate
    Series, or the properties or assets of Intermediate Series, is subject, or
    by which Intermediate Series is bound except this Agreement will be
    terminated on or prior to the Closing Date without Intermediate Series or
    National Municipals Fund incurring any liability or penalty with respect
    thereto;

 

    4.1.5  No material litigation or administrative proceeding or investigation
    of or before any court or governmental body is presently pending or to its
    knowledge threatened against Series Fund or any of the properties or assets
    of Intermediate Series. Municipal Bond Fund knows of no facts that might
    form the basis for the institution of such proceedings, and, with respect to
    Intermediate Series, Municipal Bond Fund is not a party to or subject to the
    provisions of any order, decree or judgment of any court or governmental
    body that materially and adversely affects its business or its ability to
    consummate the transactions herein contemplated;

 
                                     4


    4.1.6  The Portfolio of Investments, Statement of Assets and Liabilities,
    Statement of Operations, Statement of Changes in Net Assets, and Financial
    Highlights of Intermediate Series at April 30, 1998 and for the year then
    ended (copies of which have been furnished to National Municipals Fund) have
    been audited by PricewaterhouseCoopers LLP, independent accountants, in
    accordance with generally accepted auditing standards. Such financial
    statements are prepared in accordance with generally accepted accounting
    principles and present fairly, in all material respects, the financial
    condition, results of operations, changes in net assets and financial
    highlights of Intermediate Series as of and for the period ended on such
    date, and there are no material known liabilities of Intermediate Series
    (contingent or otherwise) not disclosed therein;

 

    4.1.7  Since April 30, 1998, there has not been any material adverse change
    in Intermediate Series' financial condition, assets, liabilities or business
    other than changes occurring in the ordinary course of business, or any
    incurrence by Intermediate Series of indebtedness maturing more than one
    year from the date such indebtedness was incurred, except as otherwise
    disclosed to and accepted by National Municipals Fund. For the purposes of
    this paragraph 4.1.7, a decline in net assets or change in the number of
    shares outstanding shall not constitute a material adverse change;

 

    4.1.8  At the date hereof and at the Closing Date, all federal and other tax
    returns and reports of Intermediate Series required by law to have been
    filed on or before such dates shall have been timely filed, and all federal
    and other taxes shown as due on said returns and reports shall have been
    paid insofar as due, or provision shall have been made for the payment
    thereof, and, to the best of Municipal Bond Fund's knowledge, all federal or
    other taxes required to be shown on any such return or report have been
    shown on such return or report, no such return is currently under audit and
    no assessment has been asserted with respect to such returns;

 

    4.1.9  For each past taxable year since it commenced operations,
    Intermediate Series has met the requirements of Subchapter M of the Internal
    Revenue Code for qualification and treatment as a regulated investment
    company and Municipal Bond Fund intends to cause such Series to meet those
    requirements for the current taxable year; and, for each past calendar year
    since it commenced operations, Intermediate Series has made such
    distributions as are necessary to avoid the imposition of federal excise tax
    or has paid or provided for the payment of any excise tax imposed;

 

    4.1.10  All issued and outstanding shares of Intermediate Series are, and at
    the Closing Date will be, duly and validly authorized, issued and
    outstanding, fully paid and non-assessable. All issued and outstanding
    shares of Intermediate Series will, at the time of the Closing, be held in
    the name of the persons and in the amounts set forth in the list of
    shareholders submitted to National Municipals Fund in accordance with the
    provisions of paragraph 3.4. Intermediate Series does not have outstanding
    any options, warrants or other rights to subscribe for or purchase any
    shares, nor is there outstanding any security convertible into any of its
    shares of Intermediate Series, except for the Class B shares of Intermediate
    Series which have the conversion feature described in Intermediate Series'
    Prospectus dated July 1, 1998;

 

    4.1.11  At the Closing Date, the Municipal Bond Fund will have good and
    marketable title to the assets of Intermediate Series to be transferred to
    National Municipals Fund pursuant to paragraph 1.1, and full right, power
    and authority to sell, assign, transfer and deliver such assets hereunder
    free of any liens, claims, charges or other encumbrances, and, upon delivery
    and payment for such assets, National Municipals Fund will acquire good and
    marketable title thereto;

 
                                     5


    4.1.12  The execution, delivery and performance of this Agreement has been
    duly authorized by the Trustees of the Municipal Bond Fund and by all
    necessary action, other than shareholder approval, on the part of
    Intermediate Series, and this Agreement constitutes a valid and binding
    obligation of Municipal Bond Fund and, subject to shareholder approval, of
    Intermediate Series;

 

    4.1.13  The information furnished and to be furnished by Municipal Bond Fund
    for use in applications for orders, registration statements, proxy materials
    and other documents that may be necessary in connection with the
    transactions contemplated hereby is and shall be accurate and complete in
    all material respects and is in compliance and shall comply in all material
    respects with applicable federal securities and other laws and regulations;
    and

 

    4.1.14  On the effective date of the registration statement filed with the
    SEC by National Municipals Fund on Form N-14 relating to the shares of
    National Municipals Fund issuable hereunder, and any supplement or amendment
    thereto (Registration Statement), at the time of the meeting of the
    shareholders of Intermediate Series and on the Closing Date, the Proxy
    Statement of Intermediate Series, the Prospectus of National Municipals
    Fund, and the Statement of Additional Information of National Municipals
    Fund to be included in the Registration Statement (collectively, Proxy
    Statement) (i) will comply in all material respects with the provisions and
    regulations of the Securities Act of 1933 (1933 Act), the Securities
    Exchange Act of 1934 (1934 Act) and the Investment Company Act, and the
    rules and regulations under such Acts and (ii) will not contain any untrue
    statement of a material fact or omit to state a material fact required to be
    stated therein in light of the circumstances under which they were made or
    necessary to make the statements therein not misleading; provided, however,
    that the representations and warranties in this paragraph 4.1.14 shall not
    apply to statements in or omissions from the Proxy Statement and
    Registration Statement made in reliance upon and in conformity with
    information furnished by National Municipals Fund for use therein.

 
4.2  National Municipals Fund represents and warrants as follows:
 
    4.2.1  National Municipals Fund is a corporation duly organized and validly
    existing under the laws of the State of Maryland;
 
    4.2.2  National Municipals Fund is an open-end, management investment
    company duly registered under the Investment Company Act, and such
    registration is in full force and effect;
 
    4.2.3  National Municipals Fund is not, and the execution, delivery and
    performance of this Agreement will not result, in violation of any provision
    of the Articles of Incorporation or By-Laws of National Municipals Fund or
    of any material agreement, indenture, instrument, contract, lease or other
    undertaking to which National Municipals Fund is a party or by which
    National Municipals Fund is bound;
 

    4.2.4  No material litigation or administrative proceeding or investigation
    of or before any court or governmental body is presently pending or
    threatened against National Municipals Fund or any of its properties or
    assets, except as previously disclosed in writing to the Municipal Bond
    Fund. Except as previously disclosed in writing to Municipal Bond Fund,
    National Municipals Fund knows of no facts that might form the basis for the
    institution of such proceedings, and National Municipals Fund is not a party
    to or subject to the provisions of any order, decree or judgment of any
    court or governmental body that materially and adversely affects its
    business or its ability to consummate the transactions herein contemplated;

 
                                     6


    4.2.5  The Portfolio of Investments, Statement of Assets and Liabilities,
    Statement of Operations, Statement of Changes in Net Assets, and Financial
    Highlights of National Municipals Fund at December 31, 1997 and for the
    fiscal year then ended (copies of which have been furnished to Series Fund)
    have been audited by PricewaterhouseCoopers LLP, independent accountants, in
    accordance with generally accepted auditing standards. Such financial
    statements are prepared in accordance with generally accepted accounting
    principles and present fairly, in all material respects, the financial
    condition, results of operations, changes in net assets and financial
    highlights of National Municipals Fund as of and for the period ended on
    such date, and there are no material known liabilities of National
    Municipals Fund (contingent or otherwise) not disclosed therein;

 

    4.2.6  Since December 31, 1997, there has not been any material adverse
    change in National Municipals Fund's financial condition, assets,
    liabilities or business other than changes occurring in the ordinary course
    of business, or any incurrence by National Municipals Fund of indebtedness
    maturing more than one year from the date such indebtedness was incurred,
    except as otherwise disclosed to and accepted by Municipal Bond Fund. For
    the purposes of this paragraph 4.2.6, a decline in net asset value per share
    or a decrease in the number of shares outstanding shall not constitute a
    material adverse change;

 
    4.2.7  At the date hereof and at the Closing Date, all federal and other tax
    returns and reports of National Municipals Fund required by law to have been
    filed on or before such dates shall have been filed, and all federal and
    other taxes shown as due on said returns and reports shall have been paid
    insofar as due, or provision shall have been made for the payment thereof,
    and, to the best of National Municipals Fund's knowledge, all federal or
    other taxes required to be shown on any such return or report are shown on
    such return or report, no such return is currently under audit and no
    assessment has been asserted with respect to such returns;
 
    4.2.8  For each past taxable year since it commenced operations, National
    Municipals Fund has met the requirements of Subchapter M of the Internal
    Revenue Code for qualification and treatment as a regulated investment
    company and intends to meet those requirements for the current taxable year;
    and, for each past calendar year since it commenced operations, National
    Municipals Fund has made such distributions as are necessary to avoid the
    imposition of federal excise tax or has paid or provided for the payment of
    any excise tax imposed;
 

    4.2.9  All issued and outstanding shares of National Municipals Fund are,
    and at the Closing Date will be, duly and validly authorized, issued and
    outstanding, fully paid and non-assessable. Except as contemplated by this
    Agreement, National Municipals Fund does not have outstanding any options,
    warrants or other rights to subscribe for or purchase any of its shares nor
    is there outstanding any security convertible into any of its shares, except
    for the Class B shares which have the conversion feature described in
    National Municipals Fund's Prospectus dated March 4, 1998;

 
    4.2.10  The execution, delivery and performance of this Agreement has been
    duly authorized by the Board of Directors of National Municipals Fund and by
    all necessary corporate action on the part of National Municipals Fund, and
    this Agreement constitutes a valid and binding obligation of National
    Municipals Fund;
 

    4.2.11  The shares of National Municipals Fund to be issued and delivered to
    Municipal Bond Fund for and on behalf of Intermediate Series pursuant to
    this Agreement will, at the Closing Date, have been duly authorized and,
    when issued and delivered as provided in this Agreement, will be duly and
    validly issued and outstanding shares of National Municipals Fund, fully
    paid and non-assessable;

 
                                     7

    4.2.12  The information furnished and to be furnished by National Municipals
    Fund for use in applications for orders, registration statements, proxy
    materials and other documents which may be necessary in connection with the
    transactions contemplated hereby is and shall be accurate and complete in
    all material respects and is and shall comply in all material respects with
    applicable federal securities and other laws and regulations; and
 

    4.2.13  On the effective date of the Registration Statement, at the time of
    the meeting of the shareholders of Intermediate Series and on the Closing
    Date, the Proxy Statement and the Registration Statement (i) will comply in
    all material respects with the provisions of the 1933 Act, the 1934 Act and
    the Investment Company Act and the rules and regulations under such Acts,
    (ii) will not contain any untrue statement of a material fact or omit to
    state a material fact required to be stated therein or necessary to make the
    statements therein not misleading and (iii) with respect to the Registration
    Statement, at the time it becomes effective, it will not contain an untrue
    statement of a material fact or omit to state a material fact necessary to
    make the statements therein in the light of the circumstances under which
    they were made, not misleading; provided, however, that the representations
    and warranties in this paragraph 4.2.13 shall not apply to statements in or
    omissions from the Proxy Statement and the Registration Statement made in
    reliance upon and in conformity with information furnished by Intermediate
    Series for use therein.

 

5.  COVENANTS OF NATIONAL MUNICIPALS FUND AND MUNICIPAL BOND FUND

 

5.1  Municipal Bond Fund, with respect to Intermediate Series, and National
Municipals Fund each covenants to operate its respective business in the
ordinary course between the date hereof and the Closing Date, it being
understood that the ordinary course of business will include declaring and
paying customary dividends and other distributions and such changes in
operations as are contemplated by the normal operations of the Funds, except as
may otherwise be required by paragraph 1.4 hereof.

 

5.2  Municipal Bond Fund covenants to call a meeting of the shareholders of
Intermediate Series to consider and act upon this Agreement and to take all
other action necessary to obtain approval of the transactions contemplated
hereby (including the determinations of its Trustees as set forth in Rule
17a-8(a) under the Investment Company Act).

 

5.3  Municipal Bond Fund covenants that National Municipals Fund shares to be
received for and on behalf of Intermediate Series in accordance herewith are not
being acquired for the purpose of making any distribution thereof other than in
accordance with the terms of this Agreement.

 

5.4  Municipal Bond Fund covenants that it will assist National Municipals Fund
in obtaining such information as National Municipals Fund reasonably requests
concerning the beneficial ownership of Intermediate Series' shares.

 
5.5  Subject to the provisions of this Agreement, each Fund will take, or cause
to be taken, all action, and will do, or cause to be done, all things,
reasonably necessary, proper or advisable to consummate and make effective the
transactions contemplated by this Agreement.
 

5.6  Municipal Bond Fund covenants to prepare the Proxy Statement in compliance
with the 1934 Act, the Investment Company Act and the rules and regulations
under each Act.

 

5.7  Municipal Bond Fund covenants that it will, from time to time, as and when
requested by National Municipals Fund, execute and deliver or cause to be
executed and delivered all such assignments and other instruments, and will take
or cause to be taken such further action, as National Municipals Fund may deem

 
                                     8


necessary or desirable in order to vest in and confirm to National Municipals
Fund title to and possession of all the assets of Intermediate Series to be
sold, assigned, transferred and delivered hereunder and otherwise to carry out
the intent and purpose of this Agreement.

 
5.8  National Municipals Fund covenants to use all reasonable efforts to obtain
the approvals and authorizations required by the 1933 Act, the Investment
Company Act (including the determinations of its Board of Directors as set forth
in Rule 17a-8(a) thereunder) and such of the state Blue Sky or securities laws
as it may deem appropriate in order to continue its operations after the Closing
Date.
 

5.9  National Municipals Fund covenants that it will, from time to time, as and
when requested by Municipal Bond Fund, execute and deliver or cause to be
executed and delivered all such assignments and other instruments, and will take
and cause to be taken such further action, as Municipal Series Fund may deem
necessary or desirable in order to (i) vest in and confirm to the Municipal Bond
Fund title to and possession of all the shares of National Municipals Fund to be
transferred to the shareholders of Intermediate Series pursuant to this
Agreement and (ii) assume all of the liabilities of Intermediate Series in
accordance with this Agreement.

 

6.  CONDITIONS PRECEDENT TO OBLIGATIONS OF MUNICIPAL BOND FUND

 

    The obligations of Municipal Bond Fund to consummate the transactions
provided for herein shall be subject to the performance by National Municipals
Fund of all the obligations to be performed by it hereunder on or before the
Closing Date and the following further conditions:

 
6.1  All representations and warranties of National Municipals Fund contained in
this Agreement shall be true and correct in all material respects as of the date
hereof and, except as they may be affected by the transaction contemplated by
this Agreement, as of the Closing Date with the same force and effect as if made
on and as of the Closing Date.
 

6.2  National Municipals Fund shall have delivered to Municipal Bond Fund on the
Closing Date a certificate executed in its name by the President or a Vice
President of National Municipals Fund, in form and substance satisfactory to
Municipal Bond Fund and dated as of the Closing Date, to the effect that the
representations and warranties of National Municipals Fund in this Agreement are
true and correct at and as of the Closing Date, except as they may be affected
by the transaction contemplated by this Agreement, and as to such other matters
as Municipal Bond Fund shall reasonably request.

 

6.3  Municipal Bond Fund shall have received on the Closing Date a favorable
opinion from Swidler Berlin Shereff Friedman, LLP, counsel to National
Municipals Fund, dated as of the Closing Date, to the effect that:

 
    6.3.1  National Municipals Fund is a corporation duly organized and validly
    existing under the laws of the State of Maryland with power under its
    Articles of Incorporation to own all of its properties and assets and, to
    the knowledge of such counsel, to carry on its business as presently
    conducted;
 

    6.3.2  This Agreement has been duly authorized, executed and delivered by
    National Municipals Fund and, assuming due authorization, execution and
    delivery of the Agreement by Municipal Bond Fund on behalf of Intermediate
    Series, is a valid and binding obligation of National Municipals Fund
    enforceable in accordance with its terms, subject to bankruptcy, insolvency,
    fraudulent transfer, reorganization, moratorium and similar laws of general
    applicability relating to or affecting creditors' rights and to general
    equity principles;

 
                                     9


    6.3.3  The shares of National Municipals Fund to be distributed to the
    shareholders of Intermediate Series under this Agreement, assuming their due
    authorization, execution and delivery as contemplated by this Agreement,
    will be validly issued and outstanding and fully paid and non-assessable,
    and no shareholder of National Municipals Fund has any pre-emptive right to
    subscribe therefor or purchase such shares;

 

    6.3.4  The execution and delivery of this Agreement did not, and the
    consummation of the transactions contemplated hereby will not, (i) conflict
    with National Municipals Fund's Articles of Incorporation or By-Laws or (ii)
    result in a default or a breach of (a) the Management Agreement dated May 2,
    1988 between National Municipals Fund and Prudential Investments Fund
    Management LLC, as successor to Prudential Mutual Fund Management, Inc., (b)
    the Custodian Contract dated July 26, 1990 between National Municipals Fund
    and State Street Bank and Trust Company, (c) the Distribution Agreement
    dated May 8, 1996 between National Municipals Fund and Prudential Securities
    Incorporated and (d) the Transfer Agency and Service Agreement dated January
    1, 1988 between National Municipals Fund and Prudential Mutual Fund Services
    LLC, as successor to Prudential Mutual Fund Services, Inc.; provided,
    however, that such counsel may state that they express no opinion as to
    bankruptcy, insolvency, fraudulent transfer, reorganization, moratorium and
    similar laws of general applicability relating to or affecting creditors'
    rights and to general equity principles;

 
    6.3.5  To the knowledge of such counsel, no consent, approval,
    authorization, filing or order of any court or governmental authority is
    required for the consummation by National Municipals Fund of the
    transactions contemplated herein, except such as have been obtained under
    the 1933 Act, the 1934 Act and the Investment Company Act and such as may be
    required under state Blue Sky or securities laws;
 
    6.3.6  National Municipals Fund has been registered with the SEC as an
    investment company, and, to the knowledge of such counsel, no order has been
    issued or proceeding instituted to suspend such registration; and
 
    6.3.7  Such counsel knows of no litigation or government proceeding
    instituted or threatened against National Municipals Fund that could be
    required to be disclosed in its registration statement on Form N-1A and is
    not so disclosed.
 
    Such opinion may rely on an opinion of Maryland Counsel to the extent it
addresses Maryland law.
 
7.  CONDITIONS PRECEDENT TO OBLIGATIONS OF NATIONAL MUNICIPALS FUND
 

    The obligations of National Municipals Fund to complete the transactions
provided for herein shall be subject to the performance by Municipal Bond Fund
of all the obligations to be performed by it hereunder on or before the Closing
Date and the following further conditions:

 

7.1  All representations and warranties of Municipal Bond Fund contained in this
Agreement shall be true and correct in all material respects as of the date
hereof and, except as they may be affected by the transaction contemplated by
this Agreement, as of the Closing Date with the same force and effect as if made
on and as of the Closing Date.

 

7.2  Series Fund shall have delivered to National Municipals Fund on the Closing
Date a statement of the assets and liabilities of Intermediate Series, which
shall be prepared in accordance with generally accepted accounting principles
consistently applied, together with a list of the portfolio securities of
Intermediate Series showing the adjusted tax base of such securities by lot, as
of the Closing Date, certified by the Treasurer of Municipal Bond Fund.

 
                                    10


7.3  Municipal Bond Fund shall have delivered to National Municipals Fund on the
Closing Date a certificate executed in its name by its President or one of its
Vice Presidents, in form and substance satisfactory to National Municipals Fund
and dated as of the Closing Date, to the effect that the representations and
warranties of Municipal Bond Fund made in this Agreement are true and correct at
and as of the Closing Date except as they may be affected by the transaction
contemplated by this Agreement, and as to such other matters as National
Municipals Fund shall reasonably request.

 

7.4  On or immediately prior to the Closing Date, Municipal Bond Fund shall have
declared and paid to the shareholders of record of Intermediate Series one or
more dividends and/or other distributions so that it will have distributed
substantially all (and in any event not less than ninety-eight percent) of such
Series' investment company taxable income (computed without regard to any
deduction for dividends paid), net tax-exempt interest income, if any, and
realized net capital gain, if any, of Intermediate Series for all completed
taxable years from the inception of such Series through April 30, 1998, and for
the period from and after April 30, 1998 through the Closing Date.

 

7.5  National Municipals Fund shall have received on the Closing Date a
favorable opinion from Swidler Berlin Shereff Friedman, LLP, special counsel to
Series Fund, dated as of the Closing Date, to the effect that:

 

    7.5.1  Municipal Bond Fund is duly organized and validly existing under the
    laws of the Commonwealth of Massachusetts with power under its Declaration
    of Trust to own all of its properties and assets and, to the knowledge of
    such counsel, to carry on its business as presently conducted and
    Intermediate Series has been duly established in accordance with the terms
    of the Municipal Bond Fund's Declaration of Trust as a separate series of
    Municipal Bond Fund;

 

    7.5.2  This Agreement has been duly authorized, executed and delivered by
    Municipal Bond Fund and constitutes a valid and legally binding obligation
    of Municipal Bond Fund enforceable against the assets of Intermediate Series
    in accordance with its terms, subject to bankruptcy, insolvency, fraudulent
    transfer, reorganization, moratorium and similar laws of general
    applicability relating to or affecting creditors' rights and to general
    equity principles;

 

    7.5.3  The execution and delivery of the Agreement did not, and the
    performance by Municipal Bond Fund of its obligations hereunder will not,
    (i) violate Municipal Bond Fund's Declaration of Trust or By-Laws or (ii)
    result in a default or a breach of (a) the Management Agreement, dated June
    1, 1995, between Municipal Bond Fund and Prudential Investments Fund
    Management LLC, as successor to Prudential Mutual Fund Management, Inc., (b)
    the Custodian Contract, dated August 25, 1987, between Municipal Bond Fund
    and State Street Bank and Trust Company, (c) the Distribution Agreement
    dated May 8, 1996, between Municipal Bond Fund and Prudential Securities
    Incorporated and the Transfer Agency and Service Agreement, dated January 1,
    1988, between Municipal Bond Fund and Prudential Mutual Fund Services LLC,
    as successor to Prudential Mutual Fund Services, Inc.; provided, however,
    that such counsel may state that insofar as performance by Municipal Bond
    Fund of its obligations under this Agreement is concerned they express no
    opinion as to bankruptcy, insolvency, fraudulent transfer, reorganization,
    moratorium and similar laws of general applicability relating to or
    affecting creditors' rights and to general equity principles;

 

    7.5.4  All regulatory consents, authorizations and approvals required to be
    obtained by Municipal Bond Fund under the federal laws of the United States
    and the laws of The Commonwealth of Massachusetts for the consummation of
    the transactions contemplated by this Agreement have been obtained;

 
                                    11


    7.5.5  Such counsel knows of no litigation or any governmental proceeding
    instituted or threatened against Series Fund, involving Intermediate Series,
    that would be required to be disclosed in its Registration Statement on Form
    N-1A and is not so disclosed; and

 

    7.5.6  Municipal Bond Fund has been registered with the SEC as an investment
    company, and, to the knowledge of such counsel, no order has been issued or
    proceeding instituted to suspend such registration.

 
    Such opinion may rely on an opinion of Massachusetts counsel to the extent
it addresses Massachusetts law, and may assume for purposes of the opinion given
pursuant to paragraph 7.5.2 that New York law is the same as Illinois law.
 

8.  FURTHER CONDITIONS PRECEDENT TO OBLIGATIONS OF NATIONAL MUNICIPALS FUND AND
    MUNICIPAL BOND FUND

 

    The obligations of National Municipals Fund and Municipal Bond Fund
hereunder are subject to the further conditions that on or before the Closing
Date:

 

8.1  This Agreement and the transactions contemplated herein shall have been
approved by the requisite vote of (a) the Trustees of Municipal Bond Fund and
the Board of Directors of National Municipals Fund, as to the determinations set
forth in Rule 17a-8(a) under the Investment Company Act, (b) the Board of
Directors of National Municipals Fund as to the assumption by the National
Municipals Fund of the liabilities of Intermediate Series and (c) the holders of
the outstanding shares of Intermediate Series in accordance with the provisions
of the Municipal Bond Fund's Declaration of Trust and By-Laws, and certified
copies of the resolutions evidencing such approvals shall have been delivered to
National Municipals Fund.

 

8.2  Any proposed change to National Municipals Fund's operations that may be
approved by the Board of Directors of National Municipals Fund subsequent to the
date of this Agreement but in connection with and as a condition to implementing
the transactions contemplated by this Agreement, for which the approval of
National Municipals Fund shareholders is required pursuant to the Investment
Company Act or otherwise, shall have been approved by the requisite vote of the
holders of the outstanding shares of National Municipals Fund in accordance with
the Investment Company Act and the provisions of the General Corporation Law of
the State of Maryland, and certified copies of the resolution evidencing such
approval shall have been delivered to Municipal Bond Fund.

 
8.3  On the Closing Date no action, suit or other proceeding shall be pending
before any court or governmental agency in which it is sought to restrain or
prohibit, or obtain damages or other relief in connection with, this Agreement
or the transactions contemplated herein.
 

8.4  All consents of other parties and all consents, orders and permits of
federal, state and local regulatory authorities (including those of the SEC and
of state Blue Sky or securities authorities, including "no-action" positions of
such authorities) deemed necessary by National Municipals Fund or Municipal Bond
Fund to permit consummation, in all material respects, of the transactions
contemplated hereby shall have been obtained, except where failure to obtain any
such consent, order or permit would not involve a risk of a material adverse
effect on the assets or properties of National Municipals Fund or Intermediate
Series, provided, that either party hereto may for itself waive any part of this
condition.

 
                                    12

8.5  The Registration Statement shall have become effective under the 1933 Act,
and no stop orders suspending the effectiveness thereof shall have been issued,
and to the best knowledge of the parties hereto, no investigation or proceeding
under the 1933 Act for that purpose shall have been instituted or be pending,
threatened or contemplated.
 

8.6  The Funds shall have received on or before the Closing Date opinions of
Swidler Berlin Shereff Friedman, LLP or a ruling from the Internal Revenue
Service with respect to Intermediate Series satisfactory to each of them,
substantially to the effect that for federal income tax purposes:

 

    8.6.1  The acquisition by National Municipals Fund of the assets of
    Intermediate Series solely in exchange for voting shares of National
    Municipals Fund and the assumption by National Municipals Fund of
    Intermediate Series' liabilities, if any, followed by the distribution of
    National Municipals Fund's voting shares pro rata to Intermediate Series'
    shareholders, pursuant to its termination and constructively in exchange for
    Intermediate Series' shares, will constitute a reorganization within the
    meaning of Section 368(a)(1)(C) of the Internal Revenue Code, and each Fund
    will be "a party to a reorganization" within the meaning of Section 368(b)
    of the Internal Revenue Code;

 

    8.6.2  Intermediate Series' shareholders will recognize no gain or loss upon
    the constructive exchange of all of their shares of Intermediate Series
    solely for shares of National Municipals Fund in complete termination of
    such Series;

 

    8.6.3  No gain or loss will be recognized to Intermediate Series upon the
    transfer of its assets to National Municipals Fund solely in exchange for
    shares of National Municipals Fund and the assumption by National Municipals
    Fund of Intermediate Series' liabilities, if any, and the subsequent
    distribution of those shares to Intermediate Series' shareholders in
    complete termination of Intermediate Series;

 

    8.6.4  No gain or loss will be recognized to National Municipals Fund upon
    the acquisition of Intermediate Series' assets solely in exchange for shares
    of National Municipals Fund and the assumption of Intermediate Series'
    liabilities, if any;

 

    8.6.5  National Municipals Fund's basis for the assets of Intermediate
    Series acquired in the Reorganization will be the same as the basis thereof
    when held by Intermediate Series immediately before the transfer, and the
    holding period of such assets acquired by National Municipals Fund will
    include the holding period thereof when held by Intermediate Series;

 

    8.6.6  Intermediate Series shareholders' basis for the shares of National
    Municipals Fund to be received by them pursuant to the reorganization will
    be the same as their basis for the shares of Intermediate Series to be
    constructively surrendered in exchange therefor; and

 

    8.6.7  The holding period of National Municipals Fund shares to be received
    by Intermediate Series' shareholders will include the period during which
    the shares of Intermediate Series to be constructively surrendered in
    exchange therefor were held; provided that the Intermediate Series shares
    surrendered were held as capital assets by those shareholders on the date of
    the exchange.

 
9.  FINDER'S FEES AND EXPENSES
 
9.1  Each Fund represents and warrants to the other that there are no finder's
fees payable in connection with the transactions provided for herein.
 
                                    13


9.2  The expenses incurred in connection with the entering into and carrying out
of the provisions of this Agreement shall be allocated to National Municipals
Fund and Intermediate Series pro rata in a fair and equitable manner in
proportion to its assets.

 
10.  ENTIRE AGREEMENT; SURVIVAL OF WARRANTIES
 
10.1  This Agreement constitutes the entire agreement between the Funds.
 
10.2  The representations, warranties and covenants contained in this Agreement
or in any document delivered pursuant hereto or in connection herewith shall
survive the consummation of the transactions contemplated hereunder.
 
11.  TERMINATION
 

    National Municipals Fund or Municipal Bond Fund as to Intermediate Series
may at its option terminate this Agreement at or prior to the Closing Date
because of:

 
11.1  A material breach by the other of any representation, warranty or covenant
contained herein to be performed at or prior to the Closing Date; or
 
11.2  A condition herein expressed to be precedent to the obligations of either
party not having been met and it reasonably appearing that it will not or cannot
be met; or
 

11.3  A mutual written agreement of Municipal Bond Fund and National Municipals
Fund.

 

    In the event of any such termination, there shall be no liability for
damages on the part of either Fund (other than the liability of the Funds to pay
their allocated expenses pursuant to paragraph 9.2) or any Director or officer
of National Municipals Fund or any Trustee or officer of Municipal Bond Fund.

 
12.  AMENDMENT
 

    This Agreement may be amended, modified or supplemented only in writing by
the parties; provided, however, that following the shareholders' meeting called
by Municipal Bond Fund pursuant to paragraph 5.2, no such amendment may have the
effect of changing the provisions for determining the number of shares of
National Municipals Fund to be distributed to Intermediate Series' shareholders
under this Agreement to the detriment of such shareholders without their further
approval.

 
13.  NOTICES
 
    Any notice, report, demand or other communication required or permitted by
any provision of this Agreement shall be in writing and shall be given by hand
delivery, or prepaid certified mail or overnight service addressed to Prudential
Investments Fund Management LLC, Gateway Center Three, Newark, New Jersey 07102,
Attention: S. Jane Rose.
 
14.  HEADINGS; COUNTERPARTS; GOVERNING LAW; ASSIGNMENT
 
14.1  The paragraph headings contained in this Agreement are for reference
purposes only and shall not affect in any way the meaning or interpretation of
this Agreement.
 
14.2  This Agreement may be executed in any number of counterparts, each of
which will be deemed an original.
 
14.3  This Agreement shall be governed by and construed in accordance with the
laws of the State of New York.
 
                                    14

14.4  This Agreement shall bind and inure to the benefit of the parties and
their respective successors and assigns, and no assignment or transfer hereof or
of any rights or obligations hereunder shall be made by either party without the
written consent of the other party. Nothing herein expressed or implied is
intended or shall be construed to confer upon or give any person, firm or
corporation other than the parties and their respective successors and assigns
any rights or remedies under or by reason of this Agreement.
 

15.  NO LIABILITY OF SHAREHOLDERS OR TRUSTEES OF MUNICIPAL BOND FUND; AGREEMENT
AN OBLIGATION ONLY OF INTERMEDIATE SERIES, AND ENFORCEABLE ONLY AGAINST ASSETS
OF INTERMEDIATE SERIES.

 

    The name "Prudential Municipal Bond Fund" is the designation of the Trustees
from time to time acting under an Amended and Restated Declaration of Trust
dated August 17, 1994, as the same may be from time to time amended, and the
name "Intermediate Series" is the designation of a portfolio of the assets of
Municipal Bond Fund. National Municipals Fund acknowledges that it must look,
and agrees that it shall look, solely to the assets of Intermediate Series for
the enforcement of any claims arising out of or based on the obligations of
Municipal Bond Fund hereunder, and with respect to obligations relating to
Intermediate Series, only to the assets of Intermediate Series, and in
particular that (i) neither the Trustees, officers, agents or shareholders of
Series Fund assume or shall have any personal liability for obligations of
Municipal Bond Fund hereunder, and (ii) none of the assets of Municipal Bond
Fund other than the portfolio assets of Intermediate Series may be resorted to
for the enforcement of any claim based on the obligations of Municipal Bond Fund
hereunder.

 
    IN WITNESS WHEREOF, each of the parties has caused this Agreement to be
executed by the President or Vice President of each Fund.
 

                                Prudential Municipal Bond Fund

 
                                By /s/ Richard A. Redeker

                                   ----------------------

                                   PRESIDENT
 
                                Prudential National Municipals Fund, Inc.
 
                                By /s/ Richard A. Redeker

                                   ----------------------


                                   PRESIDENT

 
                                    15

 

                     AGREEMENT AND PLAN OF REORGANIZATIONS

 

    Agreement  and Plan of Reorganizations (Agreement) made as  of the    day of
October,  1998,  by  and  between  Prudential  Municipal  Series  Fund   (Series
Fund)--Maryland  Series and  Michigan Series and  Prudential National Municipals
Fund, Inc. (National  Municipals Fund  and, collectively with  Series Fund,  the
Funds  and  each individually,  a Fund).  The  Series Fund  is a  business trust
organized under the laws of the  Commonwealth of Massachusetts and the  National
Municipals  Fund  is a  corporation organized  under  the laws  of the  State of
Maryland. Each Fund maintains its principal place of business at Gateway  Center
Three,  Newark, New Jersey  07102. Shares of  both Funds are  divided into three
classes, designated  Class A,  Class B  and  Class C.  Series Fund  consists  of
thirteen  series,  two of  which  are the  Maryland  Series and  Michigan Series
(collectively, the Series and each individually, a Series).

 

    This  Agreement  is  intended  to  be,   and  is  adopted  as,  a  plan   of
reorganizations pursuant to Section 368(a)(1)(C) of the Internal Revenue Code of
1986,  as amended (Internal Revenue Code). The reorganizations will comprise the
transfer of the assets of the Maryland Series and Michigan Series, respectively,
in exchange for shares of common stock of National Municipals Fund, and National
Municipals Fund's  assumption  of such  Series'  liabilities, if  any,  and  the
constructive  distribution, after the  Closing Date hereinafter  referred to, of
such shares of National  Municipals Fund to the  shareholders of the  respective
Series, and the termination of the Series as provided herein, all upon the terms
and conditions as hereinafter set forth.

 
    In  consideration of  the premises and  of the covenants  and agreements set
forth herein, the parties covenant and agree as follows:
 
1.   TRANSFER  OF ASSETS  OF  THE SERIES  IN  EXCHANGE FOR  SHARES  OF  NATIONAL
    MUNICIPALS  FUND AND ASSUMPTION  OF LIABILITIES, IF  ANY, AND TERMINATION OF
    THE SERIES
 

1.1  Subject to the  terms and conditions herein set  forth and on the basis  of
the  representations and warranties  contained herein, Series  Fund on behalf of
Maryland and Michigan Series  agrees to sell, assign,  transfer and deliver  the
assets  of each Series,  as set forth  in paragraph 1.2,  to National Municipals
Fund, and  National Municipals  Fund agrees  (a) to  issue and  deliver to  each
Series  in exchange  therefor the number  of shares  of Class A  Common Stock in
National Municipals  Fund determined  by dividing  the net  asset value  of  the
respective Series allocable to Class A, Class B and Class C shares of beneficial
interest  (computed in  the manner  and as  of the  time and  date set  forth in
paragraph 2.1)  by  the  net  asset  value allocable  to  a  share  of  National
Municipals  Fund Class A Common Stock (computed in the manner and as of the time
and date set  forth in  paragraph 2.2)  and (b) to  assume all  of each  Series'
liabilities, if any, as set forth in paragraph 1.3. Such transactions shall take
place at the closing provided for in paragraph 3 (Closing).

 
1.2   The assets of each Series to be acquired by National Municipals Fund shall
include without limitation all  cash, cash equivalents, securities,  receivables
(including  interest and  dividends receivable) and  other property  of any kind
owned by such Series and any deferred or prepaid expenses shown as assets on the
books of such Series on the closing date provided in paragraph 3 (Closing Date).
National Municipals Fund has no plan or  intent to sell or otherwise dispose  of
any assets of the Series, other than in the ordinary course of business.
 
                                     16

1.3   Except as otherwise provided  herein, National Municipals Fund will assume
all debts, liabilities, obligations and duties  of each Series of whatever  kind
or  nature, whether absolute,  accrued, contingent or  otherwise, whether or not
determinable as of the Closing Date and whether or not specifically referred  to
in  this Agreement;  provided, however, that  each Series agrees  to utilize its
best efforts  to  cause  such  Series  to discharge  all  of  the  known  debts,
liabilities, obligations and duties of such Series prior to the Closing Date.
 
1.4   On or immediately prior to the  Closing Date, each Series will declare and
pay to its shareholders of record  dividends and/or other distributions so  that
it  will have  distributed substantially  all (and  in any  event not  less than
ninety-eight percent) of each of such Series' investment company taxable  income
(computed  without regard to  any deduction for  dividends paid), net tax-exempt
interest income, if any, and realized net capital gains, if any, for all taxable
years through its termination.
 

1.5   On a  date  (Termination Date),  as  soon after  the  Closing Date  as  is
conveniently  practicable, but in any  event within 30 days  of the Closing Date
each Series  will distribute  PRO RATA  to  its Class  A, Class  B and  Class  C
shareholders  of record, determined as  of the close of  business on the Closing
Date, the Class  A shares  of National Municipals  Fund received  by the  Series
pursuant  to paragraph 1.1  in exchange for  their interest in  such Series, and
Municipal Series Fund will file with the Secretary of State of The  Commonwealth
of  Massachusetts  a Certificate  of Termination  terminating each  Series. Such
distribution will be accomplished by opening  accounts on the books of  National
Municipals  Fund  in the  names of  each  Series' shareholders  and transferring
thereto the shares credited to the account of the respective Series on the books
of National Municipals  Fund. Each  account opened  shall be  credited with  the
respective  PRO RATA number of National Municipals  Fund Class A shares due such
Series' Class  A, Class  B and  Class C  shareholders, respectively.  Fractional
shares of National Municipals Fund shall be rounded to the third decimal place.

 
1.6   National  Municipals Fund  shall not  issue certificates  representing its
shares in connection with such exchange. With respect to any Series  shareholder
holding  Series receipts  for shares  of beneficial  interest as  of the Closing
Date, until National Municipals Fund is notified by Series Fund's transfer agent
that such shareholder has surrendered his or her outstanding Series receipts for
shares of beneficial  interest or,  in the event  of lost,  stolen or  destroyed
receipts  for shares of beneficial interest, posted adequate bond or submitted a
lost certificate form,  as the case  may be, National  Municipals Fund will  not
permit  such  shareholder to  (1) receive  dividends  or other  distributions on
National  Municipals  Fund   shares  in  cash   (although  such  dividends   and
distributions  shall be credited to the  account of such shareholder established
on National Municipals Fund's  books pursuant to paragraph  1.5, as provided  in
the  next sentence),  (2) exchange National  Municipals Fund  shares credited to
such shareholder's account for shares of  other Prudential Mutual Funds, or  (3)
pledge  or redeem such shares. In the  event that a shareholder is not permitted
to receive dividends or other  distributions on National Municipals Fund  shares
in  cash as provided  in the preceding sentence,  National Municipals Fund shall
pay such dividends or other distributions in additional National Municipals Fund
shares, notwithstanding any election such shareholder shall have made previously
with respect to the payment of dividends or other distributions on shares of the
Series. Each Series will, at its expense, request its shareholders to  surrender
their  outstanding  Series  receipts  for shares  of  beneficial  interest, post
adequate bond or submit a lost certificate form, as the case may be.
 
1.7  Ownership of National Municipals Fund shares will be shown on the books  of
the  National Municipals  Fund's transfer  agent. Shares  of National Municipals
Fund will  be issued  in  the manner  described  in National  Municipals  Fund's
then-current prospectus and statement of additional information.
 
                                     17

1.8   Any transfer taxes payable upon  issuance of shares of National Municipals
Fund in exchange  for shares  of the Series  in a  name other than  that of  the
registered  holder of the shares being exchanged  on the books of that Series as
of that time shall be paid by the person to whom such shares are to be issued as
a condition to the registration of such transfer.
 
1.9  Any reporting  responsibility with the  Securities and Exchange  Commission
(SEC) or any state securities commission of Series Fund with respect to a Series
is  and shall remain  the responsibility of  the Series up  to and including the
Termination Date.
 

1.10  All  books and records  of Series  Fund, including all  books and  records
required  to be maintained under the Investment  Company Act of 1940, as amended
(Investment Company  Act) and  the rules  and regulations  thereunder, shall  be
available  to National Municipals Fund from and after the Closing Date and shall
be turned over to National Municipals Fund on or prior to the Termination Date.

 
2.  VALUATION
 
2.1   The value  of  each Series'  assets and  liabilities  to be  acquired  and
assumed,  respectively, by National Municipals Fund shall be the net asset value
computed as of 4:15 p.m., New York time, on the Closing Date (such time and date
being hereinafter called the Valuation Time), using the valuation procedures set
forth in such  Series' then-current  prospectus and Series  Fund's statement  of
additional information.
 
2.2  The net asset value of a share of National Municipals Fund shall be the net
asset  value  per  such share  computed  on  a class-by-class  basis  as  of the
Valuation Time, using the valuation procedures set forth in National  Municipals
Fund's then-current prospectus and statement of additional information.
 
2.3   The  number of  National Municipals  Fund shares  to be  issued (including
fractional shares,  if any)  in exchange  for the  Series' net  assets shall  be
calculated as set forth in paragraph 1.1.
 
2.4  All computations of net asset value shall be made by or under the direction
of  Prudential Investments  Fund Management  LLC (PIFM)  in accordance  with its
regular practice as manager of the Funds.
 
3.  CLOSING AND CLOSING DATE
 
3.1  The Closing Date shall be                ,  1998 or such later date as  the
parties  may agree  in writing. All  acts taking  place at the  Closing shall be
deemed to take place simultaneously as of  the close of business on the  Closing
Date  unless otherwise provided. The Closing shall  be at the office of National
Municipals Fund or at such other place as the parties may agree.
 
3.2  State Street Bank and Trust  Company (State Street), as custodian for  each
Series,  shall deliver to National Municipals  Fund at the Closing a certificate
of an authorized officer of State Street stating that (a) the applicable Series'
portfolio securities, cash and any other assets have been transferred in  proper
form  to National  Municipals Fund  on the  Closing Date  and (b)  all necessary
taxes, if  any, have  been paid,  or provision  for payment  has been  made,  in
conjunction with the transfer of portfolio securities.
 
3.3   In the event that immediately prior to the Valuation Time (a) the New York
Stock Exchange (NYSE) or other primary exchange is closed to trading or  trading
thereon  is restricted or (b) trading or the reporting of trading on the NYSE or
other primary exchange or elsewhere is  disrupted so that accurate appraisal  of
the  value of the net assets of the Series  and of the net asset value per share
of National  Municipals  Fund  is  impracticable,  the  Closing  Date  shall  be
postponed  until the first business  day after the date  when such trading shall
have been fully resumed and such reporting shall have been restored.
 
                                     18

3.4  Series Fund shall  deliver to National Municipals Fund  on or prior to  the
Termination  Date the names  and addresses of  each of the  shareholders of each
Series and the number of outstanding shares owned by each such shareholder,  all
as  of the close of business on the  Closing Date, certified by the Secretary or
Assistant Secretary of  Series Fund.  National Municipals Fund  shall issue  and
deliver  to  Series  Fund  at  the  Closing  a  confirmation  or  other evidence
satisfactory to Series Fund that shares of National Municipals Fund have been or
will be credited  to each Series'  account on the  books of National  Municipals
Fund.  At the Closing each party shall deliver  to the other such bills of sale,
checks, assignments, share  certificates, receipts and  other documents as  such
other  party or  its counsel may  reasonably request to  effect the transactions
contemplated by this Agreement.
 
4.  REPRESENTATIONS AND WARRANTIES
 
4.1  Series Fund represents and warrants as follows:
 
4.1.1  Series Fund is a business trust duly organized and validly existing under
the laws of The Commonwealth  of Massachusetts and each  of the Series has  been
duly  established in accordance  with the terms of  Series Fund's Declaration of
Trust as a separate series of Series Fund;
 
4.1.2  Series Fund is an open-end, management investment company duly registered
under the Investment  Company Act, and  such registration is  in full force  and
effect;
 
4.1.3   Series Fund is not, and  the execution, delivery and performance of this
Agreement will not, result in violation  of any provision of the Declaration  of
Trust  or  By-Laws  of Series  Fund  or  of any  material  agreement, indenture,
instrument, contract, lease or other undertaking to which any Series is a  party
or by which any Series is bound;
 
4.1.4   All material contracts or other  commitments to which any Series, or the
properties or assets of any Series, is subject, or by which any Series is  bound
except this Agreement will be terminated on or prior to the Closing Date without
such  Series or National Municipals Fund incurring any liability or penalty with
respect thereto;
 
4.1.5  No material litigation  or administrative proceeding or investigation  of
or  before  any  court or  governmental  body  is presently  pending  or  to its
knowledge threatened against Series Fund or  any of the properties or assets  of
any  Series. Series  Fund knows of  no facts that  might form the  basis for the
institution of such proceedings, and, with  respect to each Series, Series  Fund
is  not a party to or subject to the provisions of any order, decree or judgment
of any court  or governmental  body that  materially and  adversely affects  its
business or its ability to consummate the transactions herein contemplated;
 
4.1.6    The  Portfolio of  Investments,  Statement of  Assets  and Liabilities,
Statement of  Operations, Statement  of  Changes in  Net Assets,  and  Financial
Highlights of each Series at August 31, 1997 and for the year then ended (copies
of  which have been furnished to National  Municipals Fund) have been audited by
PricewaterhouseCoopers  LLP,   independent  accountants,   in  accordance   with
generally accepted auditing standards. Such financial statements are prepared in
accordance  with generally accepted accounting principles and present fairly, in
all material respects, the financial  condition, results of operations,  changes
in  net assets and financial highlights of such  Series as of and for the period
ended on such date,  and there are  no material known  liabilities of each  such
Series (contingent or otherwise) not disclosed therein;
 
4.1.7   Since August 31, 1997, there has not been any material adverse change in
any Series'  financial condition,  assets, liabilities  or business  other  than
changes  occurring in the ordinary course of  business, or any incurrence by any
Series  of  indebtedness  maturing  more  than  one  year  from  the  date  such
indebtedness
 
                                     19

was  incurred,  except  as  otherwise  disclosed  to  and  accepted  by National
Municipals Fund. For  the purposes  of this paragraph  4.1.7, a  decline in  net
assets  or change  in the  number of shares  outstanding shall  not constitute a
material adverse change;
 
4.1.8  At the  date hereof and at  the Closing Date, all  federal and other  tax
returns  and reports  of each Series  required by law  to have been  filed on or
before such dates shall have been timely filed, and all federal and other  taxes
shown as due on said returns and reports shall have been paid insofar as due, or
provision  shall have  been made for  the payment  thereof, and, to  the best of
Series Fund's knowledge, all federal or other taxes required to be shown on  any
such  return or report have been shown on  such return or report, no such return
is currently under  audit and no  assessment has been  asserted with respect  to
such returns;
 
4.1.9  For each past taxable year since it commenced operations, each Series has
met  the  requirements  of  Subchapter  M  of  the  Internal  Revenue  Code  for
qualification and treatment as  a regulated investment  company and Series  Fund
intends  to cause such Series to meet those requirements for the current taxable
year; and,  for each  past calendar  year since  it commenced  operations,  each
Series  has made such distributions as are  necessary to avoid the imposition of
federal excise tax or  has paid or  provided for the payment  of any excise  tax
imposed;
 

4.1.10   All issued and outstanding shares of the Series are, and at the Closing
Date will be, duly  and validly authorized, issued  and outstanding, fully  paid
and  non-assessable. All issued  and outstanding shares of  each Series will, at
the time of the Closing, be held in  the name of the persons and in the  amounts
set  forth in the list of shareholders  submitted to National Municipals Fund in
accordance with the provisions of paragraph  3.4. No Series has outstanding  any
options,  warrants or other rights to subscribe  for or purchase any shares, nor
is there outstanding any security convertible  into any of its shares of  Series
Fund,  except for the  Class B shares  of each Series  which have the conversion
feature described in Series Fund's Prospectus dated October 30, 1997;

 
4.1.11  At the Closing Date, the Series Fund will have good and marketable title
to the  assets of  each Series  to be  transferred to  National Municipals  Fund
pursuant  to paragraph 1.1, and full right, power and authority to sell, assign,
transfer and deliver such assets hereunder free of any liens, claims, charges or
other encumbrances, and,  upon delivery  and payment for  such assets,  National
Municipals Fund will acquire good and marketable title thereto;
 
4.1.12   The execution, delivery and performance of this Agreement has been duly
authorized by the Trustees of the Series Fund and by all necessary action, other
than shareholder  approval, on  the  part of  each  Series, and  this  Agreement
constitutes  a  valid and  binding  obligation of  Series  Fund and,  subject to
shareholder approval, of each Series;
 
4.1.13  The information furnished and to be furnished by Series Fund for use  in
applications  for  orders, registration  statements,  proxy materials  and other
documents that may be necessary in connection with the transactions contemplated
hereby is and shall be accurate and complete in all material respects and is  in
compliance  and shall  comply in all  material respects  with applicable federal
securities and other laws and regulations; and
 
4.1.14  On the effective date of  the registration statement filed with the  SEC
by  National Municipals  Fund on  Form N-14 relating  to the  shares of National
Municipals Fund  issuable hereunder,  and any  supplement or  amendment  thereto
(Registration Statement), at the time of the meeting of the shareholders of such
Series  and  on  the Closing  Date,  the  Proxy Statement  of  such  Series, the
Prospectus  of  National  Municipals  Fund,  and  the  Statement  of  Additional
Information  of  National Municipals  Fund to  be  included in  the Registration
 
                                     20

Statement (collectively,  Proxy  Statement)  (i) will  comply  in  all  material
respects with the provisions and regulations of the Securities Act of 1933 (1933
Act),  the Securities Exchange Act of 1934 (1934 Act) and the Investment Company
Act, and the rules and regulations under such Acts and (ii) will not contain any
untrue statement of a material fact or omit to state a material fact required to
be stated therein in light  of the circumstances under  which they were made  or
necessary to make the statements therein not misleading; provided, however, that
the  representations and warranties in this  paragraph 4.1.14 shall not apply to
statements in or omissions from  the Proxy Statement and Registration  Statement
made  in reliance upon and in  conformity with information furnished by National
Municipals Fund for use therein.
 
4.2  National Municipals Fund represents and warrants as follows:
 
4.2.1  National  Municipals Fund  is a  corporation duly  organized and  validly
existing under the laws of the State of Maryland;
 
4.2.2   National Municipals  Fund is an  open-end, management investment company
duly registered under the  Investment Company Act, and  such registration is  in
full force and effect;
 
4.2.3    National  Municipals  Fund  is not,  and  the  execution,  delivery and
performance of this Agreement will not result, in violation of any provision  of
the  Articles of Incorporation or By-Laws of  National Municipals Fund or of any
material agreement, indenture, instrument, contract, lease or other  undertaking
to  which National Municipals  Fund is a  party or by  which National Municipals
Fund is bound;
 
4.2.4  No material litigation  or administrative proceeding or investigation  of
or  before any  court or  governmental body  is presently  pending or threatened
against National Municipals Fund or any  of its properties or assets, except  as
previously  disclosed  in  writing  to the  Series  Fund.  Except  as previously
disclosed in writing to Series Fund, National Municipals Fund knows of no  facts
that  might form the basis for the institution of such proceedings, and National
Municipals Fund is not  a party to  or subject to the  provisions of any  order,
decree  or  judgment  of any  court  or  governmental body  that  materially and
adversely affects its  business or  its ability to  consummate the  transactions
herein contemplated;
 
4.2.5    The  Portfolio of  Investments,  Statement of  Assets  and Liabilities,
Statement of  Operations, Statement  of  Changes in  Net Assets,  and  Financial
Highlights  of National Municipals Fund at December  31, 1997 and for the fiscal
year then ended (copies of which have  been furnished to Series Fund) have  been
audited  by PricewaterhouseCoopers  LLP, independent  accountants, in accordance
with generally  accepted  auditing  standards.  Such  financial  statements  are
prepared in accordance with generally accepted accounting principles and present
fairly,   in  all  material  respects,   the  financial  condition,  results  of
operations,  changes  in  net  assets  and  financial  highlights  of   National
Municipals  Fund as of and for  the period ended on such  date, and there are no
material known liabilities of National Municipals Fund (contingent or otherwise)
not disclosed therein;
 
4.2.6  Since December 31, 1997, there  has not been any material adverse  change
in  National  Municipal  Fund's  financial  condition,  assets,  liabilities  or
business other than changes occurring in the ordinary course of business, or any
incurrence by National Municipals  Fund of indebtedness  maturing more than  one
year from the date such indebtedness was incurred, except as otherwise disclosed
to  and accepted  by Series Fund.  For the  purposes of this  paragraph 4.2.6, a
decline in net  asset value  per share  or a decrease  in the  number of  shares
outstanding shall not constitute a material adverse change;
 
4.2.7   At the  date hereof and at  the Closing Date, all  federal and other tax
returns and reports  of National Municipals  Fund required by  law to have  been
filed  on or before such dates shall have  been filed, and all federal and other
taxes shown as due on said returns  and reports shall have been paid insofar  as
due, or
 
                                     21

provision  shall have  been made for  the payment  thereof, and, to  the best of
National Municipals Fund's knowledge, all federal or other taxes required to  be
shown  on any such return or report are  shown on such return or report, no such
return is currently under audit and no assessment has been asserted with respect
to such returns;
 
4.2.8   For each  past  taxable year  since  it commenced  operations,  National
Municipals Fund has met the requirements of Subchapter M of the Internal Revenue
Code  for  qualification and  treatment as  a  regulated investment  company and
intends to meet those requirements for  the current taxable year; and, for  each
past  calendar year since it commenced  operations, National Municipals Fund has
made such distributions  as are  necessary to  avoid the  imposition of  federal
excise tax or has paid or provided for the payment of any excise tax imposed;
 
4.2.9  All issued and outstanding shares of National Municipals Fund are, and at
the  Closing Date will be, duly  and validly authorized, issued and outstanding,
fully paid  and  non-assessable.  Except  as  contemplated  by  this  Agreement,
National  Municipals Fund  does not  have outstanding  any options,  warrants or
other rights  to subscribe  for  or purchase  any of  its  shares nor  is  there
outstanding  any security  convertible into  any of  its shares,  except for the
Class  B  shares  which  have  the  conversion  feature  described  in  National
Municipals Fund's Prospectus dated March 4, 1998;
 
4.2.10   The execution, delivery and performance of this Agreement has been duly
authorized by the  Board of  Directors of National  Municipals Fund  and by  all
necessary  corporate action  on the part  of National Municipals  Fund, and this
Agreement constitutes  a valid  and binding  obligation of  National  Municipals
Fund;
 
4.2.11   The shares  of National Municipals  Fund to be  issued and delivered to
Series Fund for and on behalf of each Series pursuant to this Agreement will, at
the Closing Date, have  been duly authorized and,  when issued and delivered  as
provided  in this  Agreement, will  be duly  and validly  issued and outstanding
shares of National Municipals Fund, fully paid and non-assessable;
 
4.2.12  The  information furnished and  to be furnished  by National  Municipals
Fund  for  use  in  applications  for  orders,  registration  statements,  proxy
materials and other  documents which  may be  necessary in  connection with  the
transactions  contemplated hereby is  and shall be accurate  and complete in all
material respects  and  is  and  shall comply  in  all  material  respects  with
applicable federal securities and other laws and regulations; and
 
4.2.13   On the effective date of the Registration Statement, at the time of the
meeting of the shareholders of  each Series and on  the Closing Date, the  Proxy
Statement  and  the  Registration  Statement (i)  will  comply  in  all material
respects with the provisions of  the 1933 Act, the  1934 Act and the  Investment
Company Act and the rules and regulations under such Acts, (ii) will not contain
any  untrue  statement of  a  material fact  or omit  to  state a  material fact
required to be stated  therein or necessary to  make the statements therein  not
misleading  and (iii) with respect to the Registration Statement, at the time it
becomes effective, it will not contain an untrue statement of a material fact or
omit to state a material  fact necessary to make  the statements therein in  the
light of the circumstances under which they were made, not misleading; provided,
however,  that the representations and warranties in this paragraph 4.2.13 shall
not apply  to  statements in  or  omissions from  the  Proxy Statement  and  the
Registration  Statement made in reliance upon and in conformity with information
furnished by the Series for use therein.
 
                                     22

5.  COVENANTS OF NATIONAL MUNICIPALS FUND AND MUNICIPAL SERIES FUND
 
5.1  Series Fund, with respect to each Series, and National Municipals Fund each
covenants to operate its respective business in the ordinary course between  the
date  hereof and the Closing Date, it  being understood that the ordinary course
of business  will include  declaring and  paying customary  dividends and  other
distributions  and such changes in operations  as are contemplated by the normal
operations of the Funds,  except as may otherwise  be required by paragraph  1.4
hereof.
 
5.2   Series Fund covenants to call a meeting of the shareholders of each Series
to consider and act upon this Agreement  and to take all other action  necessary
to  obtain  approval  of  the transactions  contemplated  hereby  (including the
determinations of  its  Trustees  as  set  forth  in  Rule  17a-8(a)  under  the
Investment Company Act).
 
5.3   Series Fund covenants that National  Municipals Fund shares to be received
for and on behalf of each Series  in accordance herewith are not being  acquired
for the purpose of making any distribution thereof other than in accordance with
the terms of this Agreement.
 
5.4   Series  Fund covenants  that it  will assist  National Municipals  Fund in
obtaining such  information  as  National Municipals  Fund  reasonably  requests
concerning the beneficial ownership of each Series' shares.
 
5.5   Subject to the provisions of this Agreement, each Fund will take, or cause
to be  taken,  all action,  and  will  do, or  cause  to be  done,  all  things,
reasonably  necessary, proper or advisable to  consummate and make effective the
transactions contemplated by this Agreement.
 
5.6  Series Fund covenants to prepare the Proxy Statement in compliance with the
1934 Act, the Investment  Company Act and the  rules and regulations under  each
Act.
 
5.7    Series Fund  covenants  that it  will,  from time  to  time, as  and when
requested by  National Municipals  Fund,  execute and  deliver  or cause  to  be
executed and delivered all such assignments and other instruments, and will take
or  cause to be taken such further  action, as National Municipals Fund may deem
necessary or desirable in  order to vest in  and confirm to National  Municipals
Fund  title to  and possession  of all  the assets  of each  Series to  be sold,
assigned, transferred and  delivered hereunder  and otherwise to  carry out  the
intent and purpose of this Agreement.
 
5.8   National Municipals Fund covenants to use all reasonable efforts to obtain
the approvals  and  authorizations required  by  the 1933  Act,  the  Investment
Company Act (including the determinations of its Board of Directors as set forth
in  Rule 17a-8(a) thereunder) and such of  the state Blue Sky or securities laws
as it may deem appropriate in order to continue its operations after the Closing
Date.
 
5.9  National Municipals Fund covenants that it will, from time to time, as  and
when  requested by Series Fund, execute and  deliver or cause to be executed and
delivered all such assignments and other instruments, and will take and cause to
be taken such  further action, as  Municipal Series Fund  may deem necessary  or
desirable  in order to (i) vest  in and confirm to the  Series Fund title to and
possession of all the  shares of National Municipals  Fund to be transferred  to
the  shareholders of each Series pursuant to  this Agreement and (ii) assume all
of the liabilities of each Series in accordance with this Agreement.
 
6.  CONDITIONS PRECEDENT TO OBLIGATIONS OF SERIES FUND
 
    The obligations of Series Fund  to consummate the transactions provided  for
herein  shall be subject to  the performance by National  Municipals Fund of all
the obligations to be performed  by it hereunder on  or before the Closing  Date
and the following further conditions:
 
                                     23

6.1  All representations and warranties of National Municipals Fund contained in
this Agreement shall be true and correct in all material respects as of the date
hereof  and, except as they  may be affected by  the transaction contemplated by
this Agreement, as of the Closing Date with the same force and effect as if made
on and as of the Closing Date.
 
6.2  National Municipals Fund shall have delivered to Series Fund on the Closing
Date a certificate executed in its name by the President or a Vice President  of
National  Municipals Fund, in form and substance satisfactory to Series Fund and
dated as  of  the Closing  Date,  to the  effect  that the  representations  and
warranties of National Municipals Fund in this Agreement are true and correct at
and  as of the Closing  Date, except as they may  be affected by the transaction
contemplated by this  Agreement, and  as to such  other matters  as Series  Fund
shall reasonably request.
 
6.3   Series Fund  shall have received  on the Closing  Date a favorable opinion
from Swidler Berlin Shereff Friedman, LLP, counsel to National Municipals  Fund,
dated as of the Closing Date, to the effect that:
 
    6.3.1   National Municipals Fund is a corporation duly organized and validly
    existing under  the laws  of the  State  of Maryland  with power  under  its
    Articles  of Incorporation to own  all of its properties  and assets and, to
    the knowledge  of  such counsel,  to  carry  on its  business  as  presently
    conducted;
 
    6.3.2   This Agreement  has been duly authorized,  executed and delivered by
    National Municipals  Fund and,  assuming  due authorization,  execution  and
    delivery of the Agreement by Municipal Series Fund on behalf of each Series,
    is a valid and binding obligation of National Municipals Fund enforceable in
    accordance  with its  terms, subject  to bankruptcy,  insolvency, fraudulent
    transfer,  reorganization,   moratorium   and  similar   laws   of   general
    applicability  relating  to or  affecting creditors'  rights and  to general
    equity principles;
 
    6.3.3   The shares  of National  Municipals Fund  to be  distributed to  the
    shareholders  of  each  Series  under  this  Agreement,  assuming  their due
    authorization, execution  and delivery  as contemplated  by this  Agreement,
    will  be validly issued  and outstanding and  fully paid and non-assessable,
    and no shareholder of National Municipals Fund has any pre-emptive right  to
    subscribe therefor or purchase such shares;
 

    6.3.4    The execution  and  delivery of  this  Agreement did  not,  and the
    consummation of the transactions contemplated hereby will not, (i)  conflict
    with National Municipals Fund's Articles of Incorporation or By-Laws or (ii)
    result  in  a default  or a  breach  of (a)  the Management  Agreement dated
    January 22, 1990 between National Municipals Fund and Prudential Investments
    Fund Management  LLC, as  successor to  Prudential Mutual  Fund  Management,
    Inc.,  (b)  the  Custodian Contract  dated  July 26,  1990  between National
    Municipals  Fund  and  State  Street   Bank  and  Trust  Company,  (c)   the
    Distribution  Agreement dated June 1,  1998 between National Municipals Fund
    and Prudential  Investment  Management Services  LLC  and (d)  the  Transfer
    Agency  and  Service  Agreement  dated  January  1,  1990  between  National
    Municipals Fund and  Prudential Mutual  Fund Services LLC,  as successor  to
    Prudential  Mutual Fund Services, Inc.; provided, however, that such counsel
    may state  that  they  express  no opinion  as  to  bankruptcy,  insolvency,
    fraudulent  transfer, reorganization, moratorium and similar laws of general
    applicability relating  to or  affecting creditors'  rights and  to  general
    equity principles;

 
    6.3.5     To   the  knowledge  of   such  counsel,   no  consent,  approval,
    authorization, filing or  order of  any court or  governmental authority  is
    required   for  the  consummation   by  National  Municipals   Fund  of  the
    transactions contemplated herein,  except such as  have been obtained  under
    the 1933 Act, the 1934 Act and the Investment Company Act and such as may be
    required under state Blue Sky or securities laws;
 
                                     24

    6.3.6   National  Municipals Fund  has been  registered with  the SEC  as an
    investment company, and, to the knowledge of such counsel, no order has been
    issued or proceeding instituted to suspend such registration; and
 
    6.3.7   Such  counsel  knows  of  no  litigation  or  government  proceeding
    instituted  or  threatened against  National Municipals  Fund that  could be
    required to be disclosed in its  registration statement on Form N-1A and  is
    not so disclosed.
 
    Such  opinion may rely  on an opinion  of Maryland Counsel  to the extent it
addresses Maryland law.
 
7.  CONDITIONS PRECEDENT TO OBLIGATIONS OF NATIONAL MUNICIPALS FUND
 
    The obligations of  National Municipals  Fund to  complete the  transactions
provided  for herein shall be  subject to the performance  by Series Fund of all
the obligations to be performed  by it hereunder on  or before the Closing  Date
and the following further conditions:
 
7.1    All  representations and  warranties  of  Series Fund  contained  in this
Agreement shall be  true and correct  in all  material respects as  of the  date
hereof  and, except as they  may be affected by  the transaction contemplated by
this Agreement, as of the Closing Date with the same force and effect as if made
on and as of the Closing Date.
 
7.2  Series Fund shall have delivered to National Municipals Fund on the Closing
Date a statement of the  assets and liabilities of  each Series, which shall  be
prepared   in   accordance   with  generally   accepted   accounting  principles
consistently applied, together with a list  of the portfolio securities of  each
Series  showing  the adjusted  tax base  of such  securities by  lot, as  of the
Closing Date, certified by the Treasurer of Series Fund.
 
7.3  Series Fund shall have delivered to National Municipals Fund on the Closing
Date a certificate  executed in its  name by its  President or one  of its  Vice
Presidents,  in form and substance satisfactory  to National Municipals Fund and
dated as  of  the Closing  Date,  to the  effect  that the  representations  and
warranties  of Series Fund made in this Agreement are true and correct at and as
of the  Closing  Date  except  as  they  may  be  affected  by  the  transaction
contemplated  by  this  Agreement, and  as  to  such other  matters  as National
Municipals Fund shall reasonably request.
 
7.4   On or  immediately  prior to  the Closing  Date,  Series Fund  shall  have
declared  and paid  to the  shareholders of  record of  each Series  one or more
dividends  and/or  other  distributions  so   that  it  will  have   distributed
substantially  all (and in any event not less than ninety-eight percent) of such
Series' investment  company  taxable  income (computed  without  regard  to  any
deduction  for  dividends paid),  net tax-exempt  interest  income, if  any, and
realized net capital  gain, if  any, of such  Series for  all completed  taxable
years  from the inception  of such Series  through August 31,  1997, and for the
period from and after August 31, 1997 through the Closing Date.
 
7.5   National  Municipals  Fund shall  have  received  on the  Closing  Date  a
favorable  opinion from Swidler Berlin Shereff Friedman, LLP, special counsel to
Series Fund, dated as of the Closing Date, to the effect that:
 
    7.5.1  Series Fund is duly organized and validly existing under the laws  of
    the  Commonwealth of Massachusetts with power under its Declaration of Trust
    to own  all of  its properties  and assets  and, to  the knowledge  of  such
    counsel, to carry on its business as presently conducted and each Series has
    been  duly established  in accordance  with the  terms of  the Series Fund's
    Declaration of Trust as a separate series of Series Fund;
 
                                    25

    7.5.2  This Agreement  has been duly authorized,  executed and delivered  by
    Series Fund and constitutes a valid and legally binding obligation of Series
    Fund  enforceable against the  assets of each Series  in accordance with its
    terms,   subject   to    bankruptcy,   insolvency,   fraudulent    transfer,
    reorganization,   moratorium  and  similar  laws  of  general  applicability
    relating to or affecting creditors' rights and to general equity principles;
 

    7.5.3   The  execution  and delivery  of  the  Agreement did  not,  and  the
    performance  by  Series  Fund of  its  obligations hereunder  will  not, (i)
    violate Series Fund's Declaration  of Trust or By-Laws  or (ii) result in  a
    default  or a  breach of  (a) the  Management Agreement,  dated December 30,
    1988, between Series Fund and Prudential Investments Fund Management LLC, as
    successor to  Prudential Mutual  Fund Management,  Inc., (b)  the  Custodian
    Contract,  dated August 1,  1990, between Series Fund  and State Street Bank
    and Trust  Company,  (c) the  Distribution  Agreement dated  June  1,  1998,
    between  Series Fund and  Prudential Investment Management  Services LLC and
    the Transfer Agency and  Service Agreement, dated  January 1, 1988,  between
    Series  Fund  and  Prudential  Mutual Fund  Services  LLC,  as  successor to
    Prudential Mutual Fund Services, Inc.; provided, however, that such  counsel
    may  state that  insofar as  performance by  Series Fund  of its obligations
    under this Agreement is concerned they express no opinion as to  bankruptcy,
    insolvency, fraudulent transfer, reorganization, moratorium and similar laws
    of  general applicability relating to or  affecting creditors' rights and to
    general equity principles;

 
    7.5.4  All regulatory consents, authorizations and approvals required to  be
    obtained  by Series Fund under the federal laws of the United States and the
    laws of  The  Commonwealth of  Massachusetts  for the  consummation  of  the
    transactions contemplated by this Agreement have been obtained;
 
    7.5.5   Such counsel  knows of no litigation  or any governmental proceeding
    instituted or threatened  against Series  Fund, involving  any Series,  that
    would be required to be disclosed in its Registration Statement on Form N-1A
    and is not so disclosed; and
 
    7.5.6    Series Fund  has  been registered  with  the SEC  as  an investment
    company, and, to the knowledge of such counsel, no order has been issued  or
    proceeding instituted to suspend such registration.
 
    Such  opinion may rely on an opinion  of Massachusetts counsel to the extent
it addresses Massachusetts law, and may assume for purposes of the opinion given
pursuant to paragraph 7.5.2 that New York law is the same as Illinois law.
 
8.  FURTHER CONDITIONS PRECEDENT TO OBLIGATIONS OF NATIONAL MUNICIPALS FUND  AND
    SERIES FUND
 
    The  obligations of National  Municipals Fund and  Series Fund hereunder are
subject to the further conditions that on or before the Closing Date:
 
8.1  This  Agreement and the  transactions contemplated herein  shall have  been
approved  by the requisite vote of (a) the Trustees of Series Fund and the Board
of Directors of National Municipals Fund, as to the determinations set forth  in
Rule  17a-8(a) under the Investment  Company Act, (b) the  Board of Directors of
National Municipals Fund as to the assumption by the National Municipals Fund of
the liabilities of each Series and (c) the holders of the outstanding shares  of
each  Series in accordance with the  provisions of the Series Fund's Declaration
of Trust and By-Laws,  and certified copies of  the resolutions evidencing  such
approvals shall have been delivered to National Municipals Fund.
 
8.2   Any proposed change  to National Municipals Fund's  operations that may be
approved by the Board of Directors of National Municipals Fund subsequent to the
date of this Agreement but in connection with and as a condition to implementing
the transactions  contemplated by  this  Agreement, for  which the  approval  of
 
                                    26

National  Municipals Fund  shareholders is  required pursuant  to the Investment
Company Act or otherwise, shall have been approved by the requisite vote of  the
holders of the outstanding shares of National Municipals Fund in accordance with
the  Investment Company Act and the provisions of the General Corporation Law of
the State of Maryland,  and certified copies of  the resolution evidencing  such
approval shall have been delivered to Series Fund.
 
8.3   On the Closing  Date no action, suit or  other proceeding shall be pending
before any court or  governmental agency in  which it is  sought to restrain  or
prohibit,  or obtain damages or other  relief in connection with, this Agreement
or the transactions contemplated herein.
 
8.4  All  consents of  other parties  and all  consents, orders  and permits  of
federal,  state and local regulatory authorities (including those of the SEC and
of state Blue Sky or securities authorities, including "no-action" positions  of
such authorities) deemed necessary by National Municipals Fund or Series Fund to
permit  consummation, in all material respects, of the transactions contemplated
hereby shall  have  been obtained,  except  where  failure to  obtain  any  such
consent,  order or permit would not involve  a risk of a material adverse effect
on the assets or properties of National Municipals Fund or any Series, provided,
that either party hereto may for itself waive any part of this condition.
 
8.5  The Registration Statement shall have become effective under the 1933  Act,
and  no stop orders suspending the effectiveness thereof shall have been issued,
and to the best knowledge of the parties hereto, no investigation or  proceeding
under  the 1933 Act for  that purpose shall have  been instituted or be pending,
threatened or contemplated.
 

8.6  The Funds  shall have received  on or before the  Closing Date opinions  of
Swidler  Berlin  Shereff Friedman,  LLP or  a ruling  from the  Internal Revenue
Service with respect to each Series satisfactory to each of them,  substantially
to the effect that for federal income tax purposes:

 
    8.6.1  The acquisition by National Municipals Fund of the assets of a Series
    solely  in exchange  for voting shares  of National Municipals  Fund and the
    assumption by National Municipals Fund of such Series' liabilities, if  any,
    followed by the distribution of National Municipals Fund's voting shares pro
    rata   to  such  Series'  shareholders,  pursuant  to  its  termination  and
    constructively in  exchange  for  such Series'  shares,  will  constitute  a
    reorganization  within the meaning  of Section 368(a)(1)(C)  of the Internal
    Revenue Code, and each Fund will be "a party to a reorganization" within the
    meaning of Section 368(b) of the Internal Revenue Code;
 
    8.6.2  Each  Series' shareholders will  recognize no gain  or loss upon  the
    constructive  exchange  of all  of their  shares of  such Series  solely for
    shares of National Municipals Fund in complete termination of such Series;
 
    8.6.3  No gain or loss will be recognized to any Series upon the transfer of
    its assets to  National Municipals  Fund solely  in exchange  for shares  of
    National  Municipals Fund and the assumption  by National Municipals Fund of
    such Series' liabilities, if any,  and the subsequent distribution of  those
    shares to such Series' shareholders in complete termination of such Series;
 
    8.6.4   No gain or loss will  be recognized to National Municipals Fund upon
    the acquisition  of any  Series' assets  solely in  exchange for  shares  of
    National  Municipals Fund and the assumption of such Series' liabilities, if
    any;
 
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    8.6.5   National Municipals  Fund's  basis for  the  assets of  each  Series
    acquired  in the reorganizations will be the  same as the basis thereof when
    held by  the respective  Series  immediately before  the transfer,  and  the
    holding  period of  such assets  acquired by  National Municipals  Fund will
    include the holding period thereof when held by such Series;

 

    8.6.6  The Series shareholders' bases for the shares of National  Municipals
    Fund to be received by them pursuant to the reorganizations will be the same
    as  their basis for the shares of the respective Series to be constructively
    surrendered in exchange therefor; and

 

    8.6.7  The holding period of National Municipals Fund shares to be  received
    by each Series' shareholders will include the period during which the shares
    of  such Series to  be constructively surrendered  in exchange therefor were
    held; provided that  such Series'  shares surrendered were  held as  capital
    assets by those shareholders on the date of the exchange.

 
9.  FINDER'S FEES AND EXPENSES
 
9.1   Each Fund represents and warrants to  the other that there are no finder's
fees payable in connection with the transactions provided for herein.
 
9.2  The expenses incurred in connection with the entering into and carrying out
of the provisions of  this Agreement shall be  allocated to National  Municipals
Fund  and each Series pro  rata in a fair and  equitable manner in proportion to
its assets.
 
10.  ENTIRE AGREEMENT; SURVIVAL OF WARRANTIES
 
10.1  This Agreement constitutes the entire agreement between the Funds.
 
10.2  The representations, warranties and covenants contained in this  Agreement
or  in any  document delivered pursuant  hereto or in  connection herewith shall
survive the consummation of the transactions contemplated hereunder.
 
11.  TERMINATION
 
    National Municipals Fund or Series Fund as  to any Series may at its  option
terminate this Agreement at or prior to the Closing Date because of:
 
11.1  A material breach by the other of any representation, warranty or covenant
contained herein to be performed at or prior to the Closing Date; or
 
11.2   A condition herein expressed to be precedent to the obligations of either
party not having been met and it reasonably appearing that it will not or cannot
be met; or
 
11.3  A mutual written agreement of Series Fund and National Municipals Fund.
 
    In the  event of  any such  termination,  there shall  be no  liability  for
damages on the part of either Fund (other than the liability of the Funds to pay
their  allocated expenses pursuant to paragraph  9.2) or any Director or officer
of National Municipals Fund or any Trustee or officer of Series Fund.
 
12.  AMENDMENT
 
    This Agreement may be amended, modified  or supplemented only in writing  by
the  parties; provided, however, that following the shareholders' meeting called
by Series Fund pursuant to paragraph 5.2, no such amendment may have the  effect
of  changing the  provisions for  determining the  number of  shares of National
Municipals Fund  to  be  distributed  to any  Series'  shareholders  under  this
Agreement to the detriment of such shareholders without their further approval.
 
                                    28

13.  NOTICES
    Any  notice, report, demand or other  communication required or permitted by
any provision of this Agreement shall be  in writing and shall be given by  hand
delivery, or prepaid certified mail or overnight service addressed to Prudential
Investments Fund Management LLC, Gateway Center Three, Newark, New Jersey 07102,
Attention: S. Jane Rose.
14.  HEADINGS; COUNTERPARTS; GOVERNING LAW; ASSIGNMENT
14.1    The paragraph  headings contained  in this  Agreement are  for reference
purposes only and shall not affect in  any way the meaning or interpretation  of
this Agreement.
14.2   This  Agreement may be  executed in  any number of  counterparts, each of
which will be deemed an original.
14.3  This Agreement shall be governed  by and construed in accordance with  the
laws of the State of New York.
14.4   This  Agreement shall bind  and inure to  the benefit of  the parties and
their respective successors and assigns, and no assignment or transfer hereof or
of any rights or obligations hereunder shall be made by either party without the
written consent  of the  other party.  Nothing herein  expressed or  implied  is
intended  or  shall be  construed to  confer upon  or give  any person,  firm or
corporation other than the parties  and their respective successors and  assigns
any rights or remedies under or by reason of this Agreement.

14.5  The terms of this Agreement shall apply separately with respect to each of
Maryland and Michigan Series. Nothing herein expressed or implied is intended or
shall  be  construed  to  imply  that  the  approval  or  implementation  of the
reorganization with respect to  either Series is subject  to or contingent  upon
approval  or  implementation of  the reorganization  with  respect to  the other
Series.

15.   NO  LIABILITY  OF  SHAREHOLDERS OR  TRUSTEES  OF  MUNICIPAL  SERIES  FUND;
AGREEMENT  AN OBLIGATION  ONLY OF  THE RESPECTIVE  SERIES, AND  ENFORCEABLE ONLY
AGAINST ASSETS OF THE RESPECTIVE SERIES.
    The name  "Prudential  Municipal Series  Fund"  is the  designation  of  the
Trustees  from time to time acting under  an Amended and Restated Declaration of
Trust dated August 17, 1994, as the same  may be from time to time amended,  and
the  name  "Maryland  Series" and  "Michigan  Series"  is the  designation  of a
portfolio of the assets  of Series Fund.  National Municipals Fund  acknowledges
that  it must look, and agrees that it  shall look, solely to the assets of each
Series for  the  enforcement of  any  claims arising  out  of or  based  on  the
obligations  of Series Fund hereunder, and  with respect to obligations relating
to any Series, only  to the assets  of such Series, and  in particular that  (i)
neither  the Trustees, officers, agents or shareholders of Series Fund assume or
shall have any personal liability for obligations of Series Fund hereunder,  and
(ii)  none of the assets  of Series Fund other than  the portfolio assets of the
Series may  be  resorted to  for  the enforcement  of  any claim  based  on  the
obligations of Series Fund hereunder.
    IN  WITNESS WHEREOF,  each of  the parties has  caused this  Agreement to be
executed by the President of each Fund.

                                Prudential Municipal Bond Fund

                                By /s/ Richard A. Redeker

                                   ----------------------

                                   PRESIDENT
                                Prudential National Municipals Fund, Inc.
                                By /s/ Richard A. Redeker

                                   ----------------------


                                   PRESIDENT

 
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