Suppose the Level of Autonomous Spending Decreases at a Given

Multiple Choice

Suppose the level of autonomous spending decreases at a given price level.How does this relate to the aggregate expenditure line and the aggregate demand curve?  

A)  The aggregate expenditure line shifts upward, and the economy moves along the aggregate demand curve. 
B)  The aggregate expenditure line shifts downward, and the economy moves along the aggregate demand curve. 
C)  The aggregate expenditure line shifts upward, and the aggregate demand curve shifts to the right. 
D)  The aggregate expenditure line shifts downward, and the aggregate demand curve shifts to the left.