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

a.

b, when not accompanied by corresponding increases in sales,possilbly 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

答案是e

请问这道题的主语是 inventories 呢还是rising inventories.

og上他解释的后面不能用leads, 就是因为前面主语是inventories.

谢谢大家了。

rising is a modifier. So "Rising inventories" is the Subject.  Sure the verb should in agree with the subject, which is inventories.

Like "beautiful girls, ... , are ...."