Part 1 (1 point) See Hint Assume that banks hold no excess reserves and that all currency is deposited into the banking system. If the required reserve ratio is 15.00%, and the Federal Reserve wants to increase the money supply by $75.00 million, the Fed would need to make an open market purchase of $ million. (Insert your answer in millions, and round to two decimal places.) Part 2 (1 point) See Hint Assume that banks hold no excess reserves and that all currency is deposited into the banking system. If the required reserve ratio is 25.00%, and the Federal Reserve wants to decrease the money supply by $20.00 million, the Fed would need to make an open market sale of $ million. (Insert your answer in millions, and round to two decimal places.) Part 3 (1 point) See Hint Suppose that banks decide to hold excess reserves. In order for the Federal Reserve to change the money supply by the same amounts as in parts 1 and 2, it would need to make Choose one: O A. a larger open market purchase but a smaller open market sale. O B. a larger open market purchase and a larger open market sale. O C. a smaller open market purchase but a larger open market sale. O D. a smaller open market purchase and a smaller open market sale