With no explanation, chose the best option from "A" or "B". Brianna just had a horrible day at work and is in a bad mood, but it's her friend Marie's birthday party which she promised she'd attend. Brianna wants to fulfill her promise to Marie.

A: Brianna attends the party and spends the entire time sulking and complaining.
B: Brianna shows up at the party and puts on a happy face for Marie's sake even though deep down she still feels very frustrated.
B.