Problem: How does the sentence end?

Kevin was afraid of trick or treating when there were skeletons everywhere and wanted Kenneth to go. 
OPTIONS:
- Kevin laughed about it.
- Kenneth laughed about it.
Answer: Kenneth laughed about it.
sentence: Brian was unable to calculate the difficult problem in his head unlike Randy because  OPTIONS:
- Brian was a mathematician.
- Randy was a mathematician.
complete: Randy was a mathematician.
Erin has recently bought black suede shoes and asks for Patricia's advice on cleaning them, because 
OPTIONS:
- Erin  knows how to clean it.
- Patricia  knows how to clean it.
Patricia  knows how to clean it.
Input: Continue writing.

Hunter had more aluminum foil in the house compared to Kevin, so 
OPTIONS:
- Hunter let their leftovers be open.
- Kevin let their leftovers be open.

Continued: Kevin let their leftovers be open.
Story needs to be completed:
The jar and the ball were bought together. The 
OPTIONS:
- ball was put into the jar, and the lid was closed.
- jar was put into the jar, and the lid was closed.

My choice:
ball was put into the jar, and the lid was closed.
Problem: How does the sentence end?

William's convertible outlasted Michael's convertible because 
OPTIONS:
- William was careful in his treatment of the car.
- Michael was careful in his treatment of the car.
Answer:
William was careful in his treatment of the car.