Problem: How does the sentence end?

Jill's new yoga mat would not fit in her old backpack, the 
OPTIONS:
- backpack was too wide.
- mat was too wide.
Answer: mat was too wide.
sentence: Billy was preparing the mixture in the kitchen and added vinegar but not oil because the  OPTIONS:
- vinegar was scarce.
- oil was scarce.
complete: oil was scarce.
He hung the tools on the rack instead of the wall, because the 
OPTIONS:
- wall was wobbly.
- rack was wobbly.
wall was wobbly.
Input: Continue writing.

Eric declined to eat any of the liver, so Craig ate it all because 
OPTIONS:
- Eric hates the taste of live.
- Craig hates the taste of live.

Continued: Eric hates the taste of live.
Story needs to be completed:
Brett has much duller teeth than Kenneth does because 
OPTIONS:
- Brett has better dental hygiene overall.
- Kenneth has better dental hygiene overall.

My choice:
Kenneth has better dental hygiene overall.
Problem: How does the sentence end?

Before leaving on the trip, Jennifer asked if she could borrow a bag from Kayla, because 
OPTIONS:
- Jennifer needed an extra one.
- Kayla needed an extra one.
Answer:
Jennifer needed an extra one.