Suppose the Actual Price Level Is Below the Expected Price

Multiple Choice

Suppose the actual price level is below the expected price level.Given implicit or explicit resource price agreements, what effect will this have on the short-run aggregate supply curve?  

A)  The economy will move rightward along the short-run aggregate supply curve. 
B)  The economy will move leftward along the short-run aggregate supply curve. 
C)  The short-run aggregate supply curve will shift to the left. 
D)  The short-run aggregate supply curve will become flatter.