Which of the Following Is an Ineffective Practice to Follow

Which of the following is an ineffective practice to follow while implementing the marketing concept?

A) Using the customer's perception of value as the ultimate measure of work performance
B) Striking a balance between achieving organizational objectives and satisfying customers
C) Adopting a product orientation instead of a consumer orientation to deliver the right good or service
D) Involving the entire organization instead of only the marketing department in achieving customer satisfaction
E) Adapting products and services according to the changing consumer needs and wants