Whistler's Camping Supplies wants to identify its most frequent customers and offer them quantity discounts to increase their purchases and loyalty. Which of the following implementation approaches might address that problem?
A. Put a toll-free telephone number and Web site address on the product label.
B. Use bar code scanners, RFID tags, EDI, and inventory reorder software.
C. Create a "favored customer" club with an ID card.
D. Set different prices in similar markets and track sales, including sales of competing products.
E. Set up a televideo conference.
Answer: C