The Differences Between Interest Rates on US Domestic Certificates of Deposit,Treasury

The differences between interest rates on US domestic Certificates of Deposit,Treasury bills,Commercial Paper,Eurodollar Certificates of Deposit,and Fed funds

A) tend to persist when rates are rising,but not when rates are falling
B) tend to persist when rates are falling,but not when rates are rising
C) are not persistent when rate are rising or falling- hence,these instruments are not close substitutes for the short-term investments manager
D) are persistent when rates are rising or falling - hence,these instruments are close substitutes for the short-term investments manager