请教verbal og的一道sc题

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
A，B，C可以通过think of sth as 来排除，剩下d和e，og的解释是因为e是被动语态不简洁，所以选d。
我的问题是，But后的主语是 many of them 指代Household cleaning products，难道前面半句话不是同样用这个主语更对称吗？

关于你的问题，平行啊、修饰啊、指代啊、动词时态啊，全是为句意服务。不能违背句意而追求形式上的平行。

[Clause A], BUT [Clause B].

只要这两个从句语法正确，且逻辑意思正确（即“分量”相等、逻辑上具有转折关系），就可以。没有说要求主语一致。

你说得没错——"But后的主语是 many of them 指代Household cleaning products"
代词指代一般要求就近，E的them指代比较ambiguous，容易被误理解为(illogically)指代就近的复数名词customers。另外就是OG说的简洁问题，主动比被动好