[Q]: How does the sentence end?

Erin chopped the garlic while Rachel cooked the sauce, because 

[A]: Erin was a worse cook.


[Q]: How does the sentence end?

Samantha wants to prepare a juicy steak and asks Mary for an advice, because 

[A]: Mary is a chef.


[Q]: How does the sentence end?

Megan successfully lost their love handles but Betty didn't, because 

[A]:
Betty didn't hire a personal trainer.