貌似没讨论过的prep数学一道，求助！

Malik's recipe for 4 servings of a certain dish requires 3/2 cups of pasta. According to this recipe, what is the number of cups of pasta that Malik will use the next time he prepares this dish?

1) The next time he prepars this dissh, Malik will make half as many servings as he did the last time he prepaed the dish.

2) Malik used 6 cups of pasta the last time the parepared this dish.

答案是C

可能我是没看懂题。。。我觉得4serving用3/2cup，1）里面已经说了下次用1半的serving，那按标准，cup不就出来了吗？为什么选C不选A呢。。。期待解答。。。

注意第二题题干“the last time”，题目问的是“the next time”，根据他的菜谱，下次需要几杯只和下次备餐份数有关：）