Problem: How does the sentence end?

Pauline decided to wear the plain red t-shirt and not the tank with the bloody eyeball on it, because she felt the 
OPTIONS:
- tank would contrast with the norm.
- t-shirt would contrast with the norm.
Answer: tank would contrast with the norm.

Problem: How does the sentence end?

Maria agreed to potty train the child since Amy wouldn't. 
OPTIONS:
- Maria was good at teaching children.
- Amy was good at teaching children.
Answer: Maria was good at teaching children.

Problem: How does the sentence end?

The reporter missed the details of the mugging but got it right on the crash, since the 
OPTIONS:
- mugging happened so fast.
- crash happened so fast.
Answer: mugging happened so fast.

Problem: How does the sentence end?

I loved the procedure that I had in South America more than the treatment I had in Denver, because the 
OPTIONS:
- procedure was more expensive.
- treatment was more expensive.
Answer:
treatment was more expensive.