Problem: How does the sentence end?

Kayla was a Star Trek fan and could speak fluent Klingon, which Amy thought was stupid. 
OPTIONS:
- Kayla had always hated science fiction.
- Amy had always hated science fiction.
Answer: Amy had always hated science fiction.
sentence: To prevent the power from going off, the household had to turn off the dishwasher but kept on the dryer because the  OPTIONS:
- dishwasher used electricity efficiently.
- dryer used electricity efficiently.
complete: dryer used electricity efficiently.
Eric has been working overtime to make money for their upcoming vacation, but Samuel is unemployed so 
OPTIONS:
- Eric just booked their plane ticket.
- Samuel just booked their plane ticket.
Eric just booked their plane ticket.
Input: Continue writing.

Kevin found running the marathon easier than Dennis. 
OPTIONS:
- Kevin had finally decided to stop smoking.
- Dennis had finally decided to stop smoking.

Continued: Kevin had finally decided to stop smoking.
Story needs to be completed:
Nelson was making Aaron very uncomfortable with the inappropriate touching, and 
OPTIONS:
- Nelson was anxious about it.
- Aaron was anxious about it.

My choice:
Aaron was anxious about it.
Problem: How does the sentence end?

Christine tripped over the debris in the road unlike Carrie, because 
OPTIONS:
- Christine is very attentive and alert.
- Carrie is very attentive and alert.
Answer:
Carrie is very attentive and alert.