Which of the Following Observations About Nonstore Retailing Is True

Which of the following observations about nonstore retailing is true?

A) There is no way a catalog retailer can reduce the disadvantage associated with the fact that consumers can't experience the product before they buy it.
B) Net sales are higher for products sold through TV home shopping than for products sold through vending machines.
C) Net sales are higher for products sold through electronic exchanges as compared to catalogs and direct mail.
D) In the business-to-consumer market, electronic exchange is the fastest growing nonstore method of retailing.