Problem: How does the sentence end?

Christine stayed over with Elena at their house because the home of 
OPTIONS:
- Christine was filled with mold.
- Elena was filled with mold.
Answer: Christine was filled with mold.
sentence: I removed my business contacts from my phone and moved them to my computer; I felt the  OPTIONS:
- phone was vulnerable to hacking.
- computer was vulnerable to hacking.
complete: phone was vulnerable to hacking.
Lindsey was a worse teacher than Laura because 
OPTIONS:
- Lindsey had been doing the job for many more years.
- Laura had been doing the job for many more years.
Laura had been doing the job for many more years.
Input: Continue writing.

The estate sale that Betty organized for Samantha's family was meticulous, so 
OPTIONS:
- Betty was happy to pay their fee.
- Samantha was happy to pay their fee.

Continued: Samantha was happy to pay their fee.
Story needs to be completed:
Eric spent hours applying polish to his shoes, while Christopher slept all day resulting in 
OPTIONS:
- Eric having very dull shoes.
- Christopher having very dull shoes.

My choice:
Christopher having very dull shoes.
Problem: How does the sentence end?

Aaron thinks suede coats are very cool but Ian does not. 
OPTIONS:
- Aaron bought a denim coat from the clothing store.
- Ian bought a denim coat from the clothing store.
Answer:
Ian bought a denim coat from the clothing store.