With no explanation, chose the best option from "A" or "B". Emma is standing in the receiving line at her wedding when an older lady walks up who Emma doesn't immediately recognize. Emma wants to greet the woman.

A: Emma thinks back to who she invited, realizes that the lady is her mom's friend, Joan, and greets her by name.
B: Emma asks the lady what her name is and then thanks her for coming to the wedding.
A.