Which of the following contains a vague pronoun reference?
A: Scott, did you ask the nurses if the flu vaccination is available yet?
B: Scott, did you ask them if the flu vaccination is available yet?
The first answer choice contains a vague pronoun reference. The pronoun them is used without its antecedent.
The second answer choice shows a possible correction for the vague pronoun reference. Them has been replaced with the nurses.
Scott, did you ask the nurses if the flu vaccination is available yet?