In an effort to reduce their inventories, Italian vinbtners have cut their prices; thier wines have been prices to sell, and they are.


a. same
b. are pcriced to sell, and they have
c. are prices to sell, and they do
d. are being priced to sel, and they have
e. had been priced to sell, and they have

the correct answer is C.

I dont see why a doesnt fit. how should i look for clues to see that there is an understood invisible SELL at the end of the sentences?