One Main Purpose of Marketing Is to Create Value By

One main purpose of marketing is to create value by:

A) hiring the right people for the promotion of the products being manufactured.
B) informing potential buyers about a product or service.
C) fixing the measure of sacrifice that a customer is willing to make in order to acquire a specific product.
D) developing a variety of offerings, including goods, services, and ideas, to satisfy customer needs.
E) delivering the product on offer to the customer.