[求助]请帮忙翻译一个很短的语法句子

OG11-81题

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

A. ......

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C，谁能帮我先翻译一下啊，这个句子看着感觉不爽，然后请讲解一下哈！

为了减少他们的存货,意大利葡萄酒商必须降价销售葡萄酒,降价起到了效果.

D,E都时态语态错,B have 错,只有C对.