[Q]: How does the sentence end?

Will was hungry so he ate the berries instead of the apples, because the 
OPTIONS:
- apples tasted excellent.
- berries tasted excellent.

[A]: berries tasted excellent.
QUES: Continue writing.

Yoga was relaxing for Kyle but Kenneth found it stressful and frustrating. 

OPTIONS:
- Kyle had never been very flexible.
- Kenneth had never been very flexible.
+++++++++
ANS: Kenneth had never been very flexible.
Problem: How does the sentence end?

Derrick blew up their balloon with their breath while Joel used a helium tank, and 
OPTIONS:
- Derrick finished faster.
- Joel finished faster.
Answer: Joel finished faster.
sentence: Maria was the most popular girl in school, and Jennifer was a loner, so  OPTIONS:
- Maria ended up as the prom queen.
- Jennifer ended up as the prom queen.
complete: Maria ended up as the prom queen.
Jason excelled at the violin lessons while Logan struggled, because 
OPTIONS:
- Jason lacked a gift for music.
- Logan lacked a gift for music.
Logan lacked a gift for music.
Problem: Continue the following story.

Exercise is not something Jason likes, but Robert loves to do it. 
OPTIONS:
- Jason is a couch potato.
- Robert is a couch potato.
Here's how I want to continue it:
Jason is a couch potato.