Which of the following is TRUE about the elements of marketing mix?

A) Retailers sell to other companies, whereas wholesalers sell to individual consumers.

B) Channel decisions are independent of everything else in the marketing mix.

C) Customer communication consists of the organized network of firms and systems that move goods and services from the producer to the customer.

D) A firm's marketing mix consists of the combination of print, broadcast, online, and other media to be used in the promotion campaign.

E) Price elasticity is a measure of how sensitive customers are to changes in price.