When a regular customer calls a well-known pizza delivery restaurant, the order-taker types in the caller's name. The computer screen shows the customer's address, phone number, directions to his or her house, his or her usual order, and the date and frequency of orders. If the customer has not ordered during a two-month period, or the average number of orders has been down, then the pizza parlor mails them a coupon for their favorite pizza. The pizza parlor uses:

When a regular customer calls a well-known pizza delivery restaurant, the order-taker types in the caller's name. The computer screen shows the customer's address, phone number, directions to his or her house, his or her usual order, and the date and frequency of orders. If the customer has not ordered during a two-month period, or the average number of orders has been down, then the pizza parlor mails them a coupon for their favorite pizza. The pizza parlor uses:

When a regular customer calls a well-known pizza delivery restaurant, the order-taker types in the caller's name. The computer screen shows the customer's address, phone number, directions to his or her house, his or her usual order, and the date and frequency of orders. If the customer has not ordered during a two-month period, or the average number of orders has been down, then the pizza parlor mails them a coupon for their favorite pizza. The pizza parlor uses: 



A. a data warehouse
B. retail information system
C. customer data system
D. direct marketing
E. direct account management