Shoppers at an INgles supermarket can request Smart Partner cards. Before their purchases are rung up at the checkout, customers give the cards tot he checkoutperson who swipes the cards. Then a percentage of the amount of money each shopper spent is given to a school the customer has chosen. The more money the customers spend, the larger the donation to local educational institutions. Ingles uses the Smart Partner cards as a part of its:
Answer: relationship marketing