Suppose the economy is in long-run equilibrium. If the government increases its expenditures, eventually the increase inaggregate demand causes price expectations to

A、rise. This rise in price expectations shifts the short-run aggregate supply curve to the right.
B、rise. This rise in price expectations shifts the short-run aggregate supply curve to the left.
C、fall. This fall in price expectations shifts the short-run aggregate supply curve to the right.
D、fall. This fall in price expectations shifts the short-run aggregate supply curve to the left.