Refer to the Information Provided in Figure 11

Refer to the information provided in Figure 11.5 below to answer the questions that follow.
Figure 11.5
-Refer to Figure 11.5.The money supply curve will shift from to if

A) the Fed increases the reserve requirement.
B) the Fed decreases the discount rate.
C) the equilibrium level of output increases.
D) the Fed buys U.S.government securities in the open market.