Forced to cut back their stock, automobile dealers in the area have cut prices; their pick-up trucks have been priced to sell, and they are.

(A) been priced to sell, and they are
(B) are priced to sell, and they have
(C) are priced to sell, and they do
(D) are being priced to sell, and have
(E) had been priced to sell, and they have

Answers with explanations, please.