need help

Suppose the economy is initially in long-run equilibrium. The Fed decides to increase the required reserve ratio. In the short-run, this contractionary monetary policy will cause: O A. A shift from AD, to AD, and a movement to point B, with a higher price level and higher output. O B. A shift from SRAS, to SRAS, and a movement to point A, with a higher price level and the same output. O C. A shift from SRAS, to SRAS, and a movement to point B, with a lower price level and higher output. O D. A shift from AD, to AD, and a movement to point D, with a lower price level and lower output