The Aggregate Supply Curve

Multiple Choice

The aggregate supply curve

A) slopes upward to the right in both the short run and long run according to both the monetarist and Keynesian models.
B) slopes upward to the right in the short run and approaches the vertical classical formulation only in the long run,according to the monetarists and Keynesians.
C) is vertical in both the monetarist and Keynesian models.
D) None of the above