Problem: How does the sentence end?

Elena asked Christine to borrow some hosiery, because 
OPTIONS:
- Elena had run out of stockings that day.
- Christine had run out of stockings that day.
Answer: Elena had run out of stockings that day.
sentence: The children love reading the book but they do not seem to like the magazine because the  OPTIONS:
- book is unattractive.
- magazine is unattractive.
complete: magazine is unattractive.
When Brett was the focus of the intensive investigation by Hunter, 
OPTIONS:
- Brett felt great stress.
- Hunter felt great stress.
Brett felt great stress.
Input: Continue writing.

Cynthia always left her plants in Megan 's care, as 
OPTIONS:
- Cynthia had a tendency to make plants thrive.
- Megan had a tendency to make plants thrive.

Continued: Megan had a tendency to make plants thrive.
Story needs to be completed:
Natalie shows Emily how to milk a cow since 
OPTIONS:
- Natalie knows less about dealing with cattles.
- Emily knows less about dealing with cattles.

My choice:
Emily knows less about dealing with cattles.
Problem: How does the sentence end?

It was easy for Michael but not Eric to find a replacement part for the car because 
OPTIONS:
- Michael did not work in the auto mall.
- Eric did not work in the auto mall.
Answer:
Eric did not work in the auto mall.