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

-Assume that the demand curve for a certain good is a vertical line. This vertical demand curve illustrates the idea that:

A) consumers are unwilling to pay more than a certain price for the good.
B) the good is a complement to another good.
C) consumers are unwilling to pay less than a certain price for the good.
D) there are many substitutes for this good.
E) people will not change the quantity demanded of the good when its price is changed.