Problem: How does the sentence end?

The hunters had to wear the bear fur coats in the valley, but didn't need them on the mountain, since the 
OPTIONS:
- valley was so cold.
- mountain was so cold.
Answer: valley was so cold.

Problem: How does the sentence end?

The bake sale was underway and no one was buying the vegan cookies but everyone loved the fudge brownies because the 
OPTIONS:
- cookies were decadent.
- brownies were decadent.
Answer: brownies were decadent.

Problem: How does the sentence end?

Kevin sleeps only at night while Eric has to sleep during the day sometimes, because 
OPTIONS:
- Kevin works swing shifts.
- Eric works swing shifts.
Answer: Eric works swing shifts.

Problem: How does the sentence end?

When Joseph applied for an apprenticeship at Ryan's shop, 
OPTIONS:
- Joseph knew he had to create a welding test.
- Ryan knew he had to create a welding test.
Answer:
Ryan knew he had to create a welding test.