The second answer choice contains a vague pronoun reference. The pronoun them could refer to the new employees or their intake forms.
The first answer choice shows a possible correction for the vague pronoun reference. Them has been replaced with the forms.
Mr. Stafford wanted the new employees to fill out their intake forms, but he couldn't find the forms.
Which of the following contains a vague pronoun reference?
A: Mr. Stafford wanted the new employees to fill out their intake forms, but he couldn't find the forms.
B: Mr. Stafford wanted the new employees to fill out their intake forms, but he couldn't find them.