Debbilie, a Chain of Retail Cosmetic Stores, Offers Loyalty Cards

Multiple Choice

Debbilie, a chain of retail cosmetic stores, offers loyalty cards to its regular customers. The cardholders can earn points and get discounts for the purchases they make at any of the company's stores. In the context of the evolution of marketing, which of the following eras does this scenario most likely refer to?

A) The selling era
B) The production era
C) The relationship era
D) The marketing era