The Intersection of the Economy's Aggregate Demand and Long-Run Aggregate

Multiple Choice

The intersection of the economy's aggregate demand and long-run aggregate supply curves
I. determines its equilibrium real GDP in both the long run and the short run.
II. determines its equilibrium price level in both the long run and the short run.
III. occurs at the economy's potential output.

A) I, II, and III
B) I and III only
C) II and III only
D) III only