[Q]: How does the sentence end?

Christine applied moisturizer to her face, while Monica used alcohol wipes, because 

[A]: Monica had oily skin.


[Q]: How does the sentence end?

The illness affected Dennis's health a lot more than Lawrence's because 

[A]: Dennis lived a horrible lifestyle.


[Q]: How does the sentence end?

Tanya's homemade bird food was better than Jennifer because 

[A]:
Jennifer forgot to include sunflower seeds.