Advertisers Have Three Habit-Related Goals

Advertisers have three habit-related goals. Which of the following promotions is intended to help the advertiser meet the goal of habit acquisition?

A) For every ten cups of coffee you purchase at a local convenience store, you get one free.
B) A sales clerk gives out free samples of Bush's brand home style chili at Sam's Club.
C) Reynar, a long-time Crest toothpaste user, receives a coupon for a free trial-size of Rembrandt toothpaste in the mail.
D) The Mystery Book Club offers six free books to new members tied to a contract to purchase more in the future.
E) The new Kroger supermarket is holding a grand opening with numerous buy-one-get-one-free items to attract shoppers from other supermarkets.