Problem: How does the sentence end?

Cynthia went through her dresser looking for a sweater; when she couldn't find one, Rebecca lent her one.
OPTIONS:
- Cynthia was appreciative.
- Rebecca was appreciative.
Answer: Cynthia was appreciative.

sentence: Monica loved to eat potato chips but not Cynthia so OPTIONS:
- Monica had a very flat belly.
- Cynthia had a very flat belly.
complete: Cynthia had a very flat belly.

Christine grew a lot of hay on their farm but not Monica because
OPTIONS:
- Christine bred flying animals.
- Monica bred flying animals.
Monica bred flying animals.

Input: Continue writing.

It took weeks to transverse the prairie but the mountain took mere days, since the
OPTIONS:
- prairie was difficult terrain.
- mountain was difficult terrain.

Continued: prairie was difficult terrain.

Story needs to be completed:
As the boss, Rachel asked Cynthia nicely to do more work so
OPTIONS:
- Rachel could go home later.
- Cynthia could go home later.

My choice:
Cynthia could go home later.

Problem: How does the sentence end?

The teeth of Katrina are more yellow than Laura's due to
OPTIONS:
- Katrina drinking mostly water all the time.
- Laura drinking mostly water all the time.
Answer:
Laura drinking mostly water all the time.