Problem: How does the sentence end?

Elena had a stronger immune system than Rebecca , so 
OPTIONS:
- Elena ended up getting pneumonia that year.
- Rebecca ended up getting pneumonia that year.
Answer: Rebecca ended up getting pneumonia that year.

Problem: How does the sentence end?

Mary would rather swim in the pool and not the lake because the 
OPTIONS:
- pool was dirty.
- lake was dirty.
Answer: lake was dirty.

Problem: How does the sentence end?

Angela loved shopping for shoes but Tanya dreaded doing so, so 
OPTIONS:
- Angela had only a couple of shoes in their closet.
- Tanya had only a couple of shoes in their closet.
Answer: Tanya had only a couple of shoes in their closet.

Problem: How does the sentence end?

The wet hair would not fit in the hat because the 
OPTIONS:
- hat is too compact.
- hair is too compact.
Answer:
hat is too compact.