[Q]: How does the sentence end?

The cheerfulness he got from chocolates far outweighed that from chips, because the

[A]: chocolates made his digestion better.

[Q]: How does the sentence end?

The hamster left the lettuce untouched while he munched on the carrot because the

[A]: carrot was tasty.

[Q]: How does the sentence end?

Kayla looked so much better in spandex than Natalie did because

[A]:
Kayla was so slender.