IN: Which person is she?
The model frowned at her manager because she forgot to call.

OPTIONS:
- The model
- her manager
OUT: her manager

IN: Which person is they?
Professors do a lot for students, but they are rarely thankful.

OPTIONS:
- Professors
- students
OUT: students

IN: Which person is it?
The kitten played with the yarn because it was bored.

OPTIONS:
- The kitten
- the yarn
OUT: The kitten

IN: Which person is he?
Doctor Jenner continued his work on a vaccine for John, but he is not have much success.

OPTIONS:
- Doctor Jenner
- John
OUT:
Doctor Jenner