When the Demand for a Product Is Said to Be

Multiple Choice

When the demand for a product is said to be perfectly inelastic, it implies that:

A) the sales of the product are very sensitive to changes in price.
B) the demand curve for the product is relatively flat.
C) the profit per-unit increases with an increase in price.
D) with a change in price, change in quantity demanded is zero.
E) as price increases, the quantity demanded increases.