14. The employees of a firm's R&D wing and sales and marketing department were asked to form teams. Within these teams, the members from R&D were required to explain the features of the new products in detail to the employees of the sales and marketing department. This helped the sales and marketing team to promote the company's products better. This an example of the use of ________.
(A) cross-cultural teams
(B) communities of practice
(C) cross-functional teams
(D) task forces