问题详情

If the Irish expect to enjoy the 50-/0 0f reduction at prices, they should___________．
[A] pay the Japanese at least￡1 000
[B] order 1 000 pounds of batteries in weight
[C] order￡1000 worth batteries at least
[ D]pay the Japanese￡1 000 ahead请帮忙给出正确答案和分析，谢谢！