[Q]: How does the sentence end?

The mouse was averse to climbing the steps and stuck to the rails instead, since the 

[A]: rails were safe.


[Q]: How does the sentence end?

Natalie must begin a strict diet and exercise regimen while Laura gets to slack off a bit because 

[A]: Laura isn't the slightest bit overweight.


[Q]: How does the sentence end?

Cynthia wanted to buy the children some toys, but Jennifer said not to. 

[A]:
Jennifer thought toys were a big waste of spending money.