When Moving Along a Market Demand Curve, the Prices of Related

Multiple Choice

When moving along a market demand curve, the prices of related goods are assumed to be constant. With an aggregate demand curve,

A) the assumption is meaningless because we are using a market basket for all goods and services.
B) the prices of related goods have an inverse relationship.
C) all goods are assumed to have the same price.
D) the same assumption holds true.