EXHIBIT INDEX

EXHIBIT        DESCRIPTION


EX-99.1a       Amended and Restated  Declaration  of Trust,  dated June 16, 1993
               and amended May 31, 1995, is incorporated  herein by reference to
               Exhibit 1 of  Post-Effective  Amendment  No. 3 filed on April 24,
               1996.

EX-99.1b       Amendment to the  Declaration of Trust dated October 21, 1996, is
               incorporated  herein by reference to Exhibit 1b of Post-Effective
               Amendment No. 5 filed on June 27, 1997.

EX-99.2        Amended  and   Restated   Bylaws,   dated  March  9,  1998,   are
               incorporated  herein by reference to Exhibit 2 of  Post-Effective
               Amendment  No.  23 to  the  Registration  Statement  of  American
               Century Municipal Trust filed on March 26, 1998.

EX-99.4        Agreement and Plan of Reorganization is filed herein.

Ex-99.6a       Management  Agreement - Investor Class between  American  Century
               Investment  Trust and  American  Century  Investment  Management,
               Inc.,  dated August 1, 1997, is incorporated  herein by reference
               to  Exhibit  5a  of  Post-Effective   Amendment  No.  33  to  the
               Registration  Statement  of American  Century  Government  Income
               Trust, filed on July 31, 1997.

EX-99.6b       Management  Agreement - Advisor  Class between  American  Century
               Investment  Trust and  American  Century  Investment  Management,
               Inc.,  dated August 1, 1997, is incorporated  herein by reference
               to  Exhibit  5b  of  Post-Effective   Amendment  No.  27  to  the
               Registration  Statement  of American  Century  Target  Maturities
               Trust, filed on August 28, 1997.

EX-99.7        Distribution  Agreement between American Century Investment Trust
               and  Funds   Distributor,   Inc.,  dated  January  15,  1998,  is
               incorporated  herein by reference to Exhibit 6 of  Post-Effective
               Amendment  No.  28 to  the  Registration  Statement  of  American
               Century Target Maturities Trust, filed on January 30, 1998.

EX-99.9        Global Custody Agreement between The Chase Manhattan Bank and the
               Twentieth  Century and Benham  funds,  dated  August 9, 1996,  is
               incorporated  herein by reference to Exhibit 8 to  Post-Effective
               Amendment  No. 31 of American  Century  Government  Income  Trust
               filed on February 7, 1997.

EX-99.10a      Master  Distribution  and  Shareholder  Services Plan of American
               Century Government Income Trust,  American Century  International
               Bond Fund,  American Century Target Maturities Trust and American
               Century Quantitative Equity Funds (Advisor Class) dated August 1,
               1997,  is  incorporated  herein by  reference  to  Exhibit  15 of
               Post-Effective  Amendment No. 27 to the Registration Statement of
               American  Century  Target  Maturities  Trust  filed on August 28,
               1997.

EX-99.10b      Multiple Class Plan of American Century  California  Tax-Free and
               Municipal  Funds,   American  Century  Government  Income  Trust,
               American  Century  International  Bond  Funds,  American  Century
               Investment  Trust,  American Century  Municipal  Trust,  American
               Century Target Maturities Trust and American Century Quantitative
               Equity  Funds dated  August 1, 1997,  is  incorporated  herein by
               reference to Exhibit 18 of Post-Effective Amendment No. 27 to the
               Registration  Statement  of American  Century  Target  Maturities
               Trust, filed on August 28, 1997.

EX-99.11       Opinion  and  Consent  of  Counsel  as to  the  legality  of  the
               securities being registered is filed herein.

Ex-99.12       Opinion  and  Consent  of  Counsel  as to  the  tax  matters  and
               consequences to shareholders (to be filed by amendment).

EX-99.13       Transfer Agency  Agreeement  between American Century  Investment
               Trust and American Century Services  Corporation  dated August 1,
               1997,  is  incorporated  herein  by  reference  to  Exhibit  9 of
               Post-Effective  Amendment No. 33 to the Registration Statement of
               American Century Government Income Trust filed on July 31, 1997.

EX-99.14a      Consent of Deloitte & Touche LLP is filed herein.

EX-99.14b      Consent of Coopers & Lybrand is filed herein.

EX-99.14c      Consent of Baird, Kurtz and Dobson (to be filed by amendment).

EX-99.14d      Consent of KPMG Peat Marwick (to be filed by amendment).

EX-99.16       Power of Attorney dated January 15, 1998 is filed herein.

EX-99.17a      Form of Proxy is filed herein.

EX-99.17b      Prospectus  dated March 1, 1998,  for  American  Century - Benham
               Cash Reserve Fund filed as part of  Post-Effective  Amendment No.
               78 to the  Registration  Statement  of  American  Century  Mutual
               Funds,  Inc. on February  26,  1998 , is  incorporated  herein by
               reference.

EX-99.17c      Statement  of  Additional  Information  dated March 1, 1998,  for
               American  Century - Benham  Cash  Reserve  Fund  filed as part of
               Post-Effective  Amendment No. 78 to the Registration Statement of
               American  Century  Mutual  Funds,  Inc. on February 26, 1998,  is
               incorporated herein by reference.

EX-99.17d      Prospectus  dated July 1,  1997,  for  American  Century - Benham
               Prime  Money  Market  Fund  filed  as a  part  of  Post-Effective
               Amendment No. 5 to the Registration Statement of American Century
               Investment  Trust on June 27,  1997,  is  incorporated  herein by
               reference.

EX-99.17e      Statement of Additional  Information dated July 1, 1997,  revised
               August 1, 1997, for American  Century - Benham Prime Money Market
               Fund  filed  pursuant  to  Rule  497(e)  on  July  30,  1997,  is
               incorporated herein by reference.

EX-99.17f      Annual  Report  dated  October 31, 1997,  for American  Century -
               Benham  Cash  Reserve  Fund  filed  on  December  29,  1997,   is
               incorporated herein by reference.

EX-99.17g      Annual  Report  dated  October 31, 1996,  for American  Century -
               Benham  Cash  Reserve  Fund  filed  on  December  23,  1996,   is
               incorporated herein by reference.

EX-99.17h      Annual  Report dated  February 28, 1997,  for American  Century -
               Benham  Prime  Money  Market  Fund  filed on April 23,  1997,  is
               incorporated herein by reference.

EX-99.17i      Semiannual  Report dated August 31, 1997, for American  Century -
               Benham  Prime Money  Market Fund filed on October  29,  1997,  is
               incorporated herein by reference.