[Q]: How does the sentence end?

Christopher spent an hour perfecting their makeup before going out to the dance while Joseph waited, because

[A]: Christopher loved making up.

[Q]: How does the sentence end?

She used tacks instead of staples to hang up the pictures, because the

[A]: tacks were made of solid material.

[Q]: How does the sentence end?

Deep breathing was practiced by Mary but not Sarah because

[A]:
Mary enjoyed getting centered through meditation.