In the New Classical Model, the Aggregate Supply Curve Is

Multiple Choice

In the new classical model, the aggregate supply curve is:

A) upward sloping in both the short run and the long run.
B) perfectly vertical at the natural rate of unemployment in both the short run and the long run.
C) upward sloping in the short run and perfectly vertical at the natural rate of unemployment in the long run.
D) perfectly vertical at the natural rate of unemployment in the short run and upward sloping in the long run.