IN: Which person is they?
The invaders showed no mercy to the defenders, but they would not surrender anyway.

OPTIONS:
- The invaders
- the defenders
OUT: the defenders

IN: Which person is he?
The master rewarded the dog because he was a good companion.

OPTIONS:
- The master
- the dog
OUT: the dog

IN: Which person is they?
The US Health inspection board shut down several food factories, but they discovered that many rules and regulations were violated.

OPTIONS:
- The US Health inspection board
- several food factories
OUT: The US Health inspection board

IN: Which person is they?
The squirrels buried the nuts so they would not lose them.

OPTIONS:
- The squirrels
- the nuts
OUT:
The squirrels