IN:
Multi-choice problem: [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:
Multi-choice problem: [they]

The Roman legion attacked the Persians because they had invaded.

OPTIONS:
- The Roman legion
- the Persians

OUT:
the Persians


IN:
Multi-choice problem: [they]

The police called headquarters for help and they refused.

OPTIONS:
- The police
- headquarters

OUT:
headquarters


IN:
Multi-choice problem: [he]

The boy laughed at his friend because he made the joke.

OPTIONS:
- The boy
- his friend

OUT:

his friend