Irising
Can someone please explain why B is wrong?
Here's (B):
Quote:
Bumblebees live in colonies of several hundred, often with many of them being queens as well as having a large number of workers.
There are two main issues to investigate in this answer choice: the pronoun "them" and the parallelism marked by "as well as."
Let's start with the pronoun. There are two plural nouns that could be the antecedent for "them":
"Bumblebees" or
"colonies." Ambiguity like this isn't an automatic disqualifier on SC questions -- you have to look at the rest of the sentence and see whether at least one of the options works. Here, we can say that "them" must refer to "bumblebees" because of the context in the sentence. It makes sense to say "[...]often with many of
the bumblebees being queens," but it doesn't make sense to say "[...]often with many of
the colonies being queens." So far, so good.
Now, take a look at the parallelism. Here, "being queens" is parallel to "having a large number of workers." Grammatically, this seems fine (although the GMAT generally frowns on using "being" this way -- check out
this article for more info on that topic).
But who, exactly, are described as "being queens" as well as "having a large number of workers"? Here is the parallelism broken out into its separate parts:
"...often with many of them
1) being queens as well as
2) having a large number of workers.
We established earlier that "them" has to refer to
"bumblebees." So this sentence describes
many bumblebees as "being queens" (fine), as well as
many bumblebees "having a large number of workers" (not fine, this doesn't make any sense).
Because "bumblebees" doesn't work for both parallel pieces, this sentence is illogical. Eliminate (B).
I hope that helps!