With no explanation, chose the best option from "A" or "B". Kylie is talking to a boy through an online dating app when he meets a new boy at her school that she's more interested in. Kylie wants to focus her attention on the new boy from her school.

A: Kylie stops talking to the boy on the dating app and instead exclusively texts the new boy from school.
B: Kylie tells the boy on the dating app that she is getting serious with someone else and won't be talking to him anymore.
B.