Problem: How does the sentence end?

Hunter had a more difficult time doing Yoga than Craig, because
OPTIONS:
- Hunter had a rigid body.
- Craig had a rigid body.
Answer: Hunter had a rigid body.

Problem: How does the sentence end?

I was not able to clean the mold off with the soap, because the
OPTIONS:
- soap was not powerful.
- mold was not powerful.
Answer: soap was not powerful.

Problem: How does the sentence end?

Samantha was much bigger, faster and stronger than Cynthia was so
OPTIONS:
- Samantha won the fight.
- Cynthia won the fight.
Answer: Samantha won the fight.

Problem: How does the sentence end?

Sarah had a difficult childhood but Kayla had a spoiled one.
OPTIONS:
- Sarah never received gifts on their birthday.
- Kayla never received gifts on their birthday.
Answer:
Sarah never received gifts on their birthday.