Milton loves books and often shops at Chapters.At the beginning of the year,he enrolled in their rewards program where he would get discounts off the purchases he made throughout the

Milton loves books and often shops at Chapters.At the beginning of the year,he enrolled in their rewards program where he would get discounts off the purchases he made throughout the year.Which of the following best demonstrates this type of approach to customer retention?
A) Community
B) Sales promotion
C) Frequent shopper program
D) Personalization
E) Special customer service