救急啊！

(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
                    

答案是C。这句话什么意思啊？怎么个对称法啊？and前面是被动，后面do这也叫对称？

My two cents:

The first part "In an effort to reduce their inventories, Italian vintners have cut prices;" means

in order to reduce inventories, vintners have cut prices

second part "their wines are priced to sell, and they do" means

vintners "set the wines' price at a competitive level try to" (the meaning of the idiom 'priced to sell') reduce the inventory. The price NOW is at a competitive level, which is a result of "have cut". and vinters NOW DO (sell their wines).

So, it is trying to say as a result of the cut, the price are now at a competitive level and vinters do reduce the inventory.