Which of the following statements is not true in describing the money market before and after the introduction of money market mutual funds (MMMFs)?

A. Small investors could simply direct the broker to take funds out of their MMMF account to buy stocks or to deposit funds in this account when they sold securities.

B. High market interest rates of the 1970s made MMMFs particularly advantageous relative to bank deposits which were limited by the Regulation Q ceiling.

C. Prior to the introduction of MMMFs, small investors had to bring in checks to the brokerage house when they wanted to invest.

D. Prior to the introduction of MMMFs, small investors had to pick up checks from the brokerage house when they sold securities.