[Q]: How does the sentence end?

Mark was in the drill of gathering proof that proved his company engaged in Age Discrimination but the 
OPTIONS:
- proof was not sufficient.
- drill was not sufficient.

[A]: proof was not sufficient.
QUES: Continue writing.

He preferred using vinegar rather than oil in the solution, because the 

OPTIONS:
- oil made it unappealing.
- vinegar made it unappealing.
+++++++++
ANS: oil made it unappealing.
Problem: How does the sentence end?

Katrina found work to be more stressful than Monica, because 
OPTIONS:
- Katrina had an organized office.
- Monica had an organized office.
Answer: Monica had an organized office.
sentence: Jennifer noticed that Maria smells really bad and asked her why, because  OPTIONS:
- Jennifer couldn't ignore that.
- Maria couldn't ignore that.
complete: Jennifer couldn't ignore that.
Justin had a hobby they really liked but not Joseph because 
OPTIONS:
- Justin kept doing the hobby.
- Joseph kept doing the hobby.
Justin kept doing the hobby.
Problem: Continue the following story.

Benjamin looked at how successful Brian was in business and felt jealous, because 
OPTIONS:
- Benjamin was poorer at first.
- Brian was poorer at first.
Here's how I want to continue it:
Brian was poorer at first.