Problem: How does the sentence end?

During the experiment Jennifer poured the liquid into the container while Amy directed the experiment because 
OPTIONS:
- Jennifer was the senior researcher.
- Amy was the senior researcher.
Answer: Amy was the senior researcher.
sentence: While redesigning the bedroom, Rachel took out the futon and replaced it with a bed. The  OPTIONS:
- Futon was new.
- Bed was new.
complete: Bed was new.
Though they are both in unhappy marriages, Joel is staying with their spouse while Kevin is not because 
OPTIONS:
- Joel is okay with divorce.
- Kevin is okay with divorce.
Kevin is okay with divorce.
Input: Continue writing.

Erin asked Sarah for help with hanging the new bathroom mirror because 
OPTIONS:
- Erin is tall enough to reach.
- Sarah is tall enough to reach.

Continued: Sarah is tall enough to reach.
Story needs to be completed:
Mary wore a rain coat over her jacket when she got rain, because the 
OPTIONS:
- rain coat is permeable.
- jacket is permeable.

My choice:
jacket is permeable.
Problem: How does the sentence end?

There was a lot of fear in Erin's heart and not Cynthia's because 
OPTIONS:
- Erin was a fearful person.
- Cynthia was a fearful person.
Answer:
Erin was a fearful person.