[Q]: How does the sentence end?

Maria came in to relieve Mary because 
OPTIONS:
- Maria was too exhausted to continue the game.
- Mary was too exhausted to continue the game.

[A]: Mary was too exhausted to continue the game.
QUES: Continue writing.

Leslie got a much higher grade on the exam than Dennis because 

OPTIONS:
- Leslie spent a short time studying.
- Dennis spent a short time studying.
+++++++++
ANS: Dennis spent a short time studying.
Problem: How does the sentence end?

Mary had a worse tennis stroke than Betty because 
OPTIONS:
- Mary spent less time playing the sport.
- Betty spent less time playing the sport.
Answer: Mary spent less time playing the sport.
sentence: The man had to poop in the hole in his yard instead of a toilet because the  OPTIONS:
- toilet was functioning.
- hole was functioning.
complete: hole was functioning.
It is a good idea to keep digital record rather than paper record as the 
OPTIONS:
- digital record is safe in case of fire.
- paper record is safe in case of fire.
digital record is safe in case of fire.
Problem: Continue the following story.

My decision about the topic didn't coincide with his plan because the 
OPTIONS:
- decision I made was firm.
- plan I made was firm.
Here's how I want to continue it:
decision I made was firm.