Problem: How does the sentence end?

The blue towel cannot be wrapped around the tree. The 
OPTIONS:
- tree is a small one.
- towel is a small one.
Answer: towel is a small one.
sentence: Brian got a job working with dogs, while Derrick worked in sales because  OPTIONS:
- Brian was a people person.
- Derrick was a people person.
complete: Derrick was a people person.
Christopher asked Nelson to help them study for a history test because 
OPTIONS:
- Christopher was last in the class.
- Nelson was last in the class.
Christopher was last in the class.
Input: Continue writing.

Buying new office supplies and storage boxes was fun for Samuel but not Joel, since 
OPTIONS:
- Samuel hated having to organize.
- Joel hated having to organize.

Continued: Joel hated having to organize.
Story needs to be completed:
There was hair all over the floor but none on the counter, since the 
OPTIONS:
- floor was cleaned regularly.
- counter was cleaned regularly.

My choice:
counter was cleaned regularly.
Problem: How does the sentence end?

The mother of Sarah was able to attend the wedding but not the mother of Lindsey because 
OPTIONS:
- Sarah mother is deceased.
- Lindsey mother is deceased.
Answer:
Lindsey mother is deceased.