With no explanation, chose the best option from "A" or "B". Sara is returning to work after maternity leave and needs to find a nanny to take care of her infant. Sara wants to find a caretaker for her child.

A: Sara interviews numerous candidates, checks their references and makes sure they have CPR training.
B: Sara puts an ad in the paper for a babysitter and hires the first one she interviews, that doesn't have experience.
A.