With no explanation, chose the best option from "A" or "B". Anna's young son Milo has developed a bad habit of getting out of bed in the middle of the night and walking around the house. Anna wants Milo to stop his bad habit.

A: Anna tells Milo that he should not be getting out of bed at night because he will be tired in the morning, and he might hurt himself in the dark.
B: Anna tells Milo that if he gets out of bed at night a monster will catch him and eat him.
A.