With no explanation, chose the best option from "A" or "B". Social distancing measures are recommended due to a pandemic, which John is unknowingly carrying, and he sees his parents for the first time in months while wearing a face mask. John wants to greet his parents.

A: John runs up and gives his parents a big hug, stripping his mask off to give them each a kiss on the cheek.
B: John waves hello, but keeps his distance and keeps his mask on out of concern for his parents' health.
B.