Which of the Following Statements About Customer Value Is True

Which of the following statements about customer value is true?

A) Building relationships with customers means providing customer value before,but not after the purchase of a product or service.
B) Retaining current customers is usually less costly than taking customers away from a competitor.
C) A firm's advertising department cannot be expected to develop ads to convince a customer to buy from the firm more than once.
D) People in the organization who are not in the sales or customer service areas should never be called upon to help resolve a customer's problem.
E) None of these statements is true.