Relationship Marketing Refers to Which of the Following

Relationship marketing refers to which of the following?

A) Concerns the renewed focus on the acquisition of new customers and the subsequent management of relationships with the new customers
B) Concerns the shifting from activities of attracting customers to activities concerned with current customers and how to retain them
C) Concerns the management of relationships with all the external facilitators (e.g. suppliers, partners etc.) that help delivery of the product/ service to the final consumer
D) Concerns initiatives to improve the relations between internal departments of an organization, in order to make the whole organization more customer focused