The Wheel of Retailing Concept

The wheel of retailing concept

A) is consistent with the emergence of supermarkets in the 1930s.
B) explains the early success of convenience (food) stores.
C) explains the early success of vending machines.
D) suggests that new types of retailers usually emerge as high-price, high-cost operations, and then cut their prices as competitors enter the market.
E) None of the above is true.