Who is they?
Hybrid cars produce less pollution than diesel trucks because they use less gas and more electricity.

OPTIONS:
- Hybrid cars
- diesel trucks

A:
Hybrid cars

Who is she?
Caroline quickly defeated Sue because she regained her confidence.

OPTIONS:
- Caroline
- Sue

A:
Caroline

Who is he?
John ridiculed Bill because he acted like a fool.

OPTIONS:
- John
- Bill

A:

Bill