Story needs to be completed:
Amy had a better solution to the problem than Christine because 
OPTIONS:
- Amy had never had the issue.
- Christine had never had the issue.

My choice:
Christine had never had the issue.
Problem: Continue the following story.

Cynthia's hair was more silky than Emily's because 
OPTIONS:
- Cynthia spent little time on her hair care routine.
- Emily spent little time on her hair care routine.
Here's how I want to continue it: Emily spent little time on her hair care routine.
Problem: Christine needed to go the doctor because she was pregnant. Kayla offered to drive her because 
OPTIONS:
- Christine had a car.
- Kayla had a car.

My choice: Kayla had a car.
[Q]: How does the sentence end?

Nick pushed Joel's upper back gently with his hand during the stretch, because 
OPTIONS:
- Nick has stiff muscle.
- Joel has stiff muscle.

[A]: Joel has stiff muscle.
QUES: Continue writing.

The feet of Jennifer stayed drier than the feet of Felicia because 

OPTIONS:
- Jennifer had worn their rubber boots.
- Felicia had worn their rubber boots.
+++++++++
ANS: Jennifer had worn their rubber boots.
QUES: Continue writing.

The supplements that Jeffrey takes don't do as good of a job as Steven's, so 

OPTIONS:
- Jeffrey takes crappier supplements.
- Steven takes crappier supplements.
+++++++++
ANS:
Jeffrey takes crappier supplements.