[Q]: How does the sentence end?

Kayla's but not Cynthia's blood pressure must be monitored closely because

[A]: Cynthia is not overweight.

[Q]: How does the sentence end?

Brian helped the woman comfort the crying child and Neil did not because

[A]: Neil has no compassion.

[Q]: How does the sentence end?

The actor came over and shook Nelson's hand and not Kenneth's because

[A]:
Kenneth was opposite the actor.