Which of the Following Is True of Money Market Instruments

Which of the following is true of money market instruments?

A) Their yields are highly correlated over time.
B) They typically sell for par value when they are initially issued (especially T-bills and commercial paper) .
C) Treasury bills have the highest yield.
D) They all make periodic coupon (interest) payments.
E) They typically sell for par value when they are initially issued (especially T-bills and commercial paper) AND t reasury bills have the highest yield.