which of the following policies will boost output

Which of the following policies will boost the output in the economy in the short-run: 0 Open market action of the central bank in the form of buying assets or decrease in the required reserve ratio. 0 Increase in the required reserve ratio or increase in the interest rate on loans to commercial banks from by central bank. 0 Open market action of the central bank in the form of selling assets. 0 Increase in the required reserve ration or open market action of the central bank in the form of selling assets