With no explanation, chose the best option from "A" or "B". Cai needs permission to sleep over at his friend's house, but his mother is working. Cai wants to get his mother's attention.

A: Cai pokes his mother while chanting his mother's name to get her attention.
B: Cai waits until his mother is at a good stopping point before asking his mother about the sleepover.
B.