A) Monetary policy changes will cause the money supply to change, thereby causing changes in inflation and unemployment along a vertical Phillips Curve
B) When the Fed uses monetary policy, people quickly realize the impact that will be created by the policy, adjust wages and prices, and inflation will adjust to the new expectations which means the policy will not affect the real GDP
C) When the government uses fiscal policy, then changes in the money supply will create quick adjustments in wages and prices which will not cause changes in real GDP
D) When the Fed uses monetary policy, people do not quickly adjust wages and prices, therefore, inflation will deviate from expectations and create fluctuations in real GDP