Problem: How does the sentence end?

Emily is taking a math class and Jennifer is taking a computer class at school, so 
OPTIONS:
- Emily completed their computer networking homework.
- Jennifer completed their computer networking homework.
Answer: Jennifer completed their computer networking homework.

Problem: How does the sentence end?

The iron was cooler than the coffee pot because the 
OPTIONS:
- iron was still plugged in.
- coffee pot was still plugged in.
Answer: coffee pot was still plugged in.

Problem: How does the sentence end?

Grapes are a favorite of Kevin, but Leslie really can't stand the taste. 
OPTIONS:
- Kevin is a fruit lover.
- Leslie is a fruit lover.
Answer: Kevin is a fruit lover.

Problem: How does the sentence end?

Burnt out, Felicia wants to go on a vacation with Tanya but 
OPTIONS:
- Felicia needs to stay and work.
- Tanya needs to stay and work.
Answer:
Tanya needs to stay and work.