03 AM Fri Aug 2 9:03 With regard to monetary policy, which of the following is under the direct control of the Federal Reserve's Board of Go revising reserve requirements for depository institutions authorizing changes in the amount of borrowing by the Treasury monitoring the stock market for insider trading monitoring the derivatives market for illegal trading strategies D4 Which of the following is an action that the Fed uses to increase or decrease the money supply? buying or selling Treasury securities in the secondary market adjusting the tax rate imposed on income earned on Treasury securities adjusting the coupon rate on Treasury bonds selling Treasury securities in the primary market To decrease the money supply, the Fed could__ the reserve requirement ratio