Problem: How does the sentence end?

Justin won the competition for growing the largest plant and beat Kenneth because 
OPTIONS:
- Justin was known to have a green thumb.
- Kenneth was known to have a green thumb.
Answer: Justin was known to have a green thumb.

Problem: How does the sentence end?

Kayla was tired of being bullied and freaked Amy out when 
OPTIONS:
- Kayla decided to bring a gun to school.
- Amy decided to bring a gun to school.
Answer: Kayla decided to bring a gun to school.

Problem: How does the sentence end?

Because of the fact that Maria performed fewer physical exercises than Amy did, 
OPTIONS:
- Maria was in worse shape overall.
- Amy was in worse shape overall.
Answer: Maria was in worse shape overall.

Problem: How does the sentence end?

The woman tried to put the books on the couches but the 
OPTIONS:
- couches were too large.
- books were too large.
Answer:
books were too large.