With no explanation, chose the best option from "A" or "B". John is walking down the street when he spots an old acquaintance, Dan walking towards him and waving at John. John wants to respond to Dan's wave.

A: John quickly looks down at the ground pretending not to notice Dan's wave and scurries off in a different direction.
B: John waves back at Dan and tells Dan hello and that it's been a long time so it's nice to see him.
B.