give explanation also

24. Money market mutual funds are important users of a. repo b. foreign currencies c. BBB corporate bonds d. Bitcoins 25. The market in which banks borrow and lend reserves to each other is called the a. Reserve market b. Federal funds market c. Treasury bill market d. Overnight bank market 26. Prior to the financial crisis the Fed controlled short-term interest rates by changing a. reserve requirements on time deposits b. the interest rate on excess reserves held by banks c. the amount of reserve balances in the banking system d. the supply of currency held by the public