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 reinforcement?

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) Sam sees a comparative ad showing the superiority of Coors beer over Anheuser-Busch beer.
D) A vacuum cleaner salesperson offers to clean the living room carpet of the Truman household.
E) A new laundry shop offers a one-time free trial for all customers.