A Money Market Mutual Fund Account Is A(n)

A money market mutual fund account is a(n) :

A) checking account that earns interest.
B) savings account against which one can write checks.
C) group of stocks sold under one name.
D) claim on a collection of interest-earning assets that is not guaranteed by the FDIC.
E) account with which the Fed buys and sells U.S.government securities.