Problem: How does the sentence end?

Carrie tossed and turned all night long unlike Mary because 
OPTIONS:
- Carrie had none of the symptoms of the flu.
- Mary had none of the symptoms of the flu.
Answer: Mary had none of the symptoms of the flu.
sentence: The coursework for class was much harder for Betty to keep up with than Felicia because,  OPTIONS:
- Betty was unfocused on the daily tasks.
- Felicia was unfocused on the daily tasks.
complete: Betty was unfocused on the daily tasks.
All the routine tasks at work bores Donald but Ryan is fine with it, 
OPTIONS:
- Donald prefers consistency in work.
- Ryan prefers consistency in work.
Ryan prefers consistency in work.
Input: Continue writing.

When I shot the paintball, it didn't go through the window as the 
OPTIONS:
- paintball was weak.
- window was weak.

Continued: paintball was weak.
Story needs to be completed:
They both wanted to get a tattoo but Benjamin had an easier time asking their parents than Derrick because 
OPTIONS:
- Benjamin parents were easy going.
- Derrick parents were easy going.

My choice:
Benjamin parents were easy going.
Problem: How does the sentence end?

The dog was able to walk away further on the leash than the harness because the 
OPTIONS:
- leash was longer.
- harness was longer.
Answer:
leash was longer.