Under a Fixed Exchange Rate System,a Neutral Fiscal Policy,and Perfect

Under a fixed exchange rate system,a neutral fiscal policy,and perfect capital mobility,a contractionary monetary policy is ineffective because the:

A) Fed's attempt to reduce money supply will be offset by an inflow of gold.
B) Fed's attempt to reduce money supply raises interest rates;capital flows into the United States from other countries,and the American money supply increases.
C) capital account is unaffected by the Fed's actions.
D) Fed's attempt to reduce money supply reduces interest rates;capital flows out of the United States,and the U.S.money supply increases.