OG12 No. 87

tutu2010

In an effort to reduce their inventories, Italian vintners
have cut prices; their wines have been priced to sell,
and they are.
(A) have 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

I can't understand the explaining. Could you please explain the reason why choose C

红尘道士

这个属于谓语动词的省略，要注意助动词的用法
A中前面助动词是have 和do，后面用了are，不符合
B中前面助动词是are 和do，后面用了have，不符合
C中前面助动词是are 和do，后面用了do，符合