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 chili at the supermarket.
C) Reynar, a long-time toothpaste user, receives a coupon for a free trial-size of another brand of toothpaste in the mail.
D) To entice you to join a book club, the organization offers six free books to new members.
E) The new supermarket is holding a grand opening with numerous buy-one-get-one-free items to attract shoppers from other supermarkets.