Question

question
the two infected cats were delivered to the plymouth veterinary clinic, where infectious disease expert joan it.
which choice is clearest and most grammatically acceptable in context?
a no change
b them.
c that.
d this.

Explanation:

The subject here is "the two infected cats", which is plural. So we need a plural pronoun to refer to them. Option A uses "it" (singular), C uses "that" (not appropriate for referring to the cats), D uses "this" (singular and not appropriate). Option B uses "them", which is plural and correctly refers to the two cats.

Answer:

B. them.