The Figure Given Below Shows the Demand Curves for Five

Multiple Choice

The figure given below shows the demand curves for five products: A, B, C, D, and E.Figure 6.1

-When the cross-price elasticity of demand for two goods is a positive number, one can correctly conclude that:

A) the goods are normal goods.
B) the goods are inferior goods.
C) the goods are substitutes.
D) the goods are complements.
E) total revenue will increase when the price increases.