[Q]: How does the sentence end?

Derrick was unable to stay focused at work unlike Justin, because 
OPTIONS:
- Derrick had a boring job.
- Justin had a boring job.

[A]: Derrick had a boring job.


[Q]: How does the sentence end?

The lady's vacuum worked a lot better on the carpet than the broom, because the 
OPTIONS:
- vacuum was powerful.
- broom was powerful.

[A]: vacuum was powerful.


[Q]: How does the sentence end?

They asked Betty to play the mandolin at their wedding and not Katrina because 
OPTIONS:
- Betty was an excellent musician.
- Katrina was an excellent musician.

[A]:
Betty was an excellent musician.