If the Fed increases the quantity of money, then O A. both the aggregate demand curve and the aggregate supply curve shift leftward. O B. aggregate demand increases and the AD curve shifts rightward. O C. the quantity of real GDP demanded decreases and there is a movement up along the AD curve. O D. the quantity of real GDP demanded increases and there is a movement down along the AD curve. O E. aggregate demand decreases and the AD curve shifts leftward.