What Does the Downward Slope of the Aggregate-Demand Curve Show

Multiple Choice

What does the downward slope of the aggregate-demand curve show?

A) that an increase in the money supply causes the aggregate quantity of goods and services demanded to increase
B) that an increase in the money supply causes the aggregate quantity of goods and services demanded to decrease
C) that an increase in the price level causes the aggregate quantity of goods and services demanded to increase
D) that an increase in the price level causes the aggregate quantity of goods and services demanded to decrease