The Aggregate Demand Curve for an Economy Depicts the _____

The aggregate demand curve for an economy depicts the _____

A) quantity of goods and services demanded during a given time period at different interest rates, other things constant.
B) quantity of goods and services demanded at different price levels during different time periods, other things constant.
C) quantity of goods and services demanded at different price levels during a given time period, other things constant.
D) quantity of goods and services that the economy is capable of producing during a given time period, other things constant.
E) final quantity of goods and services actually produced by the economy during a given time period, other things constant.