People who live in the town of Madisonville can buy food at one of five different grocery stores. Because the grocery stores must compete with each other for customers, which of the following best explains how this impacts residents of Madisonville?
A.
Residents are not allowed to choose where they shop.
B.
Residents have limited varieties of food available to them.
C.
Residents often deal with shortages of food.
D.
Residents pay lower prices for groceries.