"Cooperative" Advertising Refers to the Practice Of

"Cooperative" advertising refers to the practice of:

A) producers and intermediaries sharing in the cost of advertising that is done by the producer.
B) producers doing some advertising and expecting their intermediaries to cooperate by providing the rest of the promotion blend.
C) the producer paying for all of the advertising which is done by its intermediaries.
D) wholesalers and retailers doing advertising which is partially paid for by the producer.
E) wholesalers and retailers picking up the promotion theme of the producer and carrying it through.