In the Short-Run Macro Model,an Increase in the Money Supply

In the short-run macro model,an increase in the money supply will

A) move the economy to the right along the aggregate expenditure line.
B) move the economy to the left along the aggregate expenditure line.
C) shift the aggregate expenditure line upward.
D) shift the aggregate expenditure line downward.
E) cause the aggregate expenditure line to rotate until it is flat.