​The Central Focus of the Marketer's Activities Is to Develop

​The central focus of the marketer's activities is to develop mutually-beneficial relationships with customers and potential customers. If the marketer is able to convince the customer to buy the firm's products, then the customer's lifetime value to the firm is enhanced. Marketers also seek to encourage the customer's _________________ the firm's products because that will ____________ the customers' lifetime value to the firm.

A) strong word-of-mouth communication about; increase.
B) critique of; increase.
C) passive word-of-mount communication about; maintain.
D) strong word-of-mouth communication about; stabilize
E) critique of; maintain