When the price level is below the level at which the aggregate demand curve crosses the long run aggregate supply? curve,
A. actual real GDP would exceed total planned real? expenditures, and the price level will fall.
B. actual real GDP would be less than total planned real? expenditures, and the price level will rise.
C. there will be pressures that will lead to a shift of either the aggregate demand or the long run aggregate supply curves.
D. there will be no price level change.