Problem: How does the sentence end?

The acid reflux of Erin was worse than Kayla because 
OPTIONS:
- Erin ate has eaten terrible foods for a long time.
- Kayla ate has eaten terrible foods for a long time.
Answer: Erin ate has eaten terrible foods for a long time.

Problem: How does the sentence end?

Rachel didn't know how to be humble and Tanya did because 
OPTIONS:
- Rachel got angry with people very easily.
- Tanya got angry with people very easily.
Answer: Rachel got angry with people very easily.

Problem: How does the sentence end?

William liked to exercise on a regular basis, but Randy hated it, so 
OPTIONS:
- William was in a much sorrier condition.
- Randy was in a much sorrier condition.
Answer: Randy was in a much sorrier condition.

Problem: How does the sentence end?

So 
OPTIONS:
- Rachel was scared by the pig because Rachel has been attacked by one before and Samantha owns a farm.
- Samantha was scared by the pig because Rachel has been attacked by one before and Samantha owns a farm.
Answer:
Rachel was scared by the pig because Rachel has been attacked by one before and Samantha owns a farm.