The price elasticity of demand increases with the length of the period considered because . consumers' incomes will increase over time.b. the demand curve will shift outward as time passes.c. all prices will increase over time.d. consumers will be better able to find substitutes.

d. consumers will be better able to find substitutes.

Explanation:

The price elasticity of demand measures the responsiveness of quantity demanded to changes in price.

A demand is elastic if a change in price leads to a greater change in quantity demanded.

In the short run, quantity demanded is less price elastic because consumers might not have found a suitable substitute. Demand is more elastic in the long run because consumers would have more time to find substitutes.

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