Problem: How does the sentence end?

Jennifer tried to find Elena's vein to inject their medicine, but 
OPTIONS:
- Jennifer could not sit still very well.
- Elena could not sit still very well.
Answer: Elena could not sit still very well.

Problem: How does the sentence end?

he replaced fruits for vegetables in the evening meal for all, the 
OPTIONS:
- fruits were available.
- vegetables were available.
Answer: vegetables were available.

Problem: How does the sentence end?

Being a teacher is not easy and has its rewards and downsides. Penny thought the 
OPTIONS:
- rewards outweighed the downsides but John thought the downsides were worse.
- downsides outweighed the downsides but John thought the downsides were worse.
Answer: rewards outweighed the downsides but John thought the downsides were worse.

Problem: How does the sentence end?

Jason looked a lot younger than Kenneth because 
OPTIONS:
- Jason didn't have a skincare routine they followed.
- Kenneth didn't have a skincare routine they followed.
Answer:
Kenneth didn't have a skincare routine they followed.