With no explanation, chose the best option from "A" or "B". Nikki recently got a new cat, but she can't train it to use the litter box and it's making a mess of her apartment. Nikki has to decide what to do with her cat.

A: Nikki searches online for an effective method of training a cat to use a litter box, where she learns several new methods to try.
B: Nikki gets tired of cleaning up and smelling cat leavings and tosses the cat out the door of the apartment building.
A.