Suppose a Central Bank Prevents an Appreciation of Its Currency

Suppose a central bank prevents an appreciation of its currency by intervening in the foreign exchange market and selling its currency for foreign currency.This causes the

A) domestic money supply to decrease and a decline in aggregate demand
B) domestic money supply to increase and a decline in aggregate demand
C) domestic money supply to decrease and a rise in aggregate demand
D) domestic money supply to increase and a fall in aggregate demand