With no explanation, chose the best option from "A" or "B". Gary hears his girlfriend whispering in the next room, he suspects that she is talking on her phone. Gary wants to find out who his girlfriend was talking to in the next room.

A: Gary waits until his girlfriend is asleep and looks through her phone history.
B: Gary expresses his concern that his girlfriend was speaking so softly on the phone and asks her if everything is alright in their relationship.
B.