[Q]: How does the sentence end?

There was more iron in the meteorite than in the rock because the

[A]: meteorite was larger.

[Q]: How does the sentence end?

Eric wore long dangling earrings all up the ear lobe but not Brett because

[A]: Brett had unpierced ears.

[Q]: How does the sentence end?

Kayla dated many more people at once than Betty, because

[A]:
Kayla was in an exclusive relationship.