[Q]: How does the sentence end?

So
OPTIONS:
- William was upset because William had managed to steal a valuable painting from the house of Christopher.
- Christopher was upset because William had managed to steal a valuable painting from the house of Christopher.

[A]: Christopher was upset because William had managed to steal a valuable painting from the house of Christopher.

[Q]: How does the sentence end?

His doctor said his diet should include vegetables and not donuts because the
OPTIONS:
- vegetables are detrimental.
- donuts are detrimental.

[A]: donuts are detrimental.

[Q]: How does the sentence end?

Kayla has a pet which left pet hair in Lindsey's hair and now
OPTIONS:
- Kayla is helping her to remove it.
- Lindsey is helping her to remove it.

[A]:
Kayla is helping her to remove it.