The Price Elasticity of Demand Is a Units-Free Measure of the Responsiveness

The price elasticity of demand is a units-free measure of the responsiveness of the ________ when all other influences on buying plans remain the same.

A) quantity demanded to a change in the price of a substitute or complement
B) quantity demanded to a change in income
C) quantity demanded of a good to a change in its price
D) price to a change in quantity demanded
E) quantity demanded of a good to a change in supply