OG 2018 Verbal 222

Ken750

222. Consumers may not think of household cleaning products to be hazardous substances, but many of them can be harmful to health, especially if they are used improperly.
A.    Consumers may not think of household cleaning products to be
B.    Consumers may not think of household cleaning products being
C.    A consumer may not think of their household cleaning products being
D.    A consumer may not think of household cleaning products as
E.    Household cleaning products may not be thought of, by consumers, as

Ken750

My question is: Why is option E incorrect. I think because "many of them" after "but" refers to products,  the first clause should also start with the same subject because of parallelism.

Thanks in advance!

啊喂我是蚊子

E答案不需要用products开头的原因是
题目中第一句的结尾就是them指代的内容
Consumers may not think of household cleaning products to be hazardous substances, but many of them
BTW：答案选D不？think of sth to be sth似乎是个错误用法呢

practidealist

D?   E不如d吧  e是被动语态而d主动  另外d中使用了a consumer很好地避免了them的错误指代