Suppose the Actual and Expected Price Levels in an Economy

Suppose the actual and expected price levels in an economy are initially equal. However, the actual price level becomes higher due to some change in economic conditions. Which of the following will occur eventually?

A) The economy will move upward along the short-run aggregate supply curve.
B) The economy will move downward along the short-run aggregate supply curve.
C) The short-run aggregate supply curve will shift to the right.
D) The short-run aggregate supply curve will shift to the left.
E) The short-run aggregate supply curve will become flatter.