Problem: How does the sentence end?

Leslie thought it was a good idea to ask Ryan for help with a business plan because 
OPTIONS:
- Leslie wanted a successful business.
- Ryan wanted a successful business.
Answer: Leslie wanted a successful business.
sentence: Playing music came much more naturally to Hunter than Kevin although  OPTIONS:
- Hunter loved the clarinet.
- Kevin loved the clarinet.
complete: Kevin loved the clarinet.
The toddler tore up the book and sucked on the magazine, so the 
OPTIONS:
- book was covered in tears.
- magazine was covered in tears.
book was covered in tears.
Input: Continue writing.

Rachel was a very good assassin unlike Amy because 
OPTIONS:
- Rachel had a very clumsy body.
- Amy had a very clumsy body.

Continued: Amy had a very clumsy body.
Story needs to be completed:
Emily's hair was recently dyed to get the gray out, but Erin has never had grays, so 
OPTIONS:
- Emily is younger.
- Erin is younger.

My choice:
Erin is younger.
Problem: How does the sentence end?

Joseph was assisting the roofing project while Neil was leading so 
OPTIONS:
- Joseph did the mental labor.
- Neil did the mental labor.
Answer:
Neil did the mental labor.