12.  Rising inventories, when unaccompanied correspondingly by increases in sales, can lead to production cutbacks that would hamper economic growth.

(A)  when unaccompanied correspondingly by increases in sales, can lead

(B)  when not accompanied by corresponding increases in sales, possibly leads

(C)  when they were unaccompanied by corresponding sales increases, can lead

(D)  if not accompanied by correspondingly increased sales, possibly leads

(E)  if not accompanied by corresponding increases in sales, can lead

the correct answer is E.

对C的解释verb (leads) does not agree with the subject (inventories).说文章的主语是inventories，是复数。

但是我为什么觉得是rising inventories是主语，那rising inventories是主语的话，那他是单数还是复数呢？

这里有个常见的误区

实际上对于 Rising inventories这个结构，主语是inventories，rising作为-ing形式的定语存在 所以这里的谓语动词一定用复数 而不是单数

实际上Rise这个词本身就有名词的意思，所以如果稳中要表达inventories增多的话 不会使用Rising inventories而会使用Rise of inventories。

GMAT本身就有这样一个趋势，那就是如果某个地方需要某个词性的词汇，那么就一定不会用这个词汇的别的词性来描述

这个就好像我们之前说过的  indicate作谓语的时候 一定不会用 be indicative of来说 是一个道理

希望上面的解释可以帮到你：0

看来我是没有搞懂rising是动名词还是形容词，如果是形容词的话，那么就好理解了：上升的货存。

看来我是跳进了自己给自己设的陷阱了。