[Q]: How does the sentence end?

Amy was allowed to use the hot glue gun but not Megan because

[A]: Amy was older.

[Q]: How does the sentence end?

Craig transcribes slower than Ian because

[A]: Ian invested in a pair of high quality headphones.

[Q]: How does the sentence end?

Samantha was dropped off at the fashion show by Betty because

[A]:
Betty owned a car to go there.