At noon on Wednesday, the proprietors of a certain cupcake shop realized that they had sold 20% fewer cupcakes that morning than they had sold the previous morning. By noon on Tuesday, they had sold $250 worth of cupcakes. Each cupcake costs $2.50, and the shop sold $500 worth of cupcakes on Tuesday. If the proprietors hold an impromptu sale on Wednesday afternoon during which each cupcake has its price reduced by 20%, how many cupcakes must they sell on Wednesday afternoon in order to sell the same dollar value worth of cupcakes that they did on Tuesday?

(A) 80
(B) 100
(C) 120
(D) 150
(E) 200

Answer: D

Source: Veritas Prep