Red Bud Florist Received in the Mail an Offer from Aquafoam,a

Red Bud Florist received in the mail an offer from Aquafoam,a water-soluble foam brick frequently used for arranging fresh flowers.According to the offer,if the owner of Red Bud would place an order with Aquafoam,she would be automatically registered to win $10,000 in a customer appreciation contest.This is an example of the combining of direct marketing with:

A) a trade promotion
B) public relations
C) advertising
D) personal selling
E) a consumer promotion