The Shape of the Aggregate Demand Curve Does NOT Tell

Multiple Choice

The shape of the aggregate demand curve does NOT tell us anything about how the total dollar value of spending will ultimately be divided between output and prices. For this we need

A) information about the standard of living in the country.
B) information that only the Consumers' Price Index can provide.
C) an aggregate supply curve.
D) to know how far from the origin the aggregate demand curve is.