Problem: How does the sentence end?

Nelson did not have to practice football very hard, but Eric did as 
OPTIONS:
- Nelson was naturally very bad at it.
- Eric was naturally very bad at it.
Answer: Eric was naturally very bad at it.

Problem: How does the sentence end?

Kayla tried to hire Jessica to water the plants because 
OPTIONS:
- Kayla was going away on a long vacation.
- Jessica was going away on a long vacation.
Answer: Kayla was going away on a long vacation.

Problem: How does the sentence end?

Emily was generally a happier and more content person than Katrina, because 
OPTIONS:
- Emily had a greater appreciation for their lot in life.
- Katrina had a greater appreciation for their lot in life.
Answer: Emily had a greater appreciation for their lot in life.

Problem: How does the sentence end?

Cynthia was more interested in the ballet than Elena because 
OPTIONS:
- Cynthia daughter was in the ballet.
- Elena daughter was in the ballet.
Answer:
Cynthia daughter was in the ballet.