Which one of the following statements by a company president best reflects the marketing concept?

a$)$ We try to produce only high$-$quality, technically efficient products.

b$)$ We believe that the marketing department must organize to sell what we produce.

C$)$ We have organized an aggressive sales force in our company to promote our products.

d$)$ We try to encourage company growth.

e$)$ We have organized our business to make certain that customers get what they want.