The Long- Run Aggregate Supply Curve Is Vertical Because

Multiple Choice

The long- run aggregate supply curve is vertical because

A) a vertical long- run aggregate supply curve indicates the maximum output rate that an economy can ever attain.
B) a vertical long- run supply curve indicates that an increase in aggregate demand will lead to greater real GDP, but not greater nominal GDP.
C) potential GDP never changes.
D) actual output can never exceed, even temporarily, the quantity of output determined by the economy's long- run aggregate supply curve.
E) potential GDP is independent of the price level.