When the U.S. price level rises, _______. A. a movement down along the AD curve occurs and the quantity of U.S. real GDP demanded increases B. a movement up along the AD curve occurs and the quantity of U.S. real GDP demanded decreases C. the AD curve shifts leftward and the demand for U.S. real GDP decreases D. the AD shifts rightward and the demand for U.S. real GDP increases E. the AD curve shifts leftward and the quantity of U.S. real GDP demanded decreases