With no explanation, chose the best option from "A" or "B". David is talking to some friends about basketball and one of them disagrees with him about which team is better. David wants to make a counterargument to his friend.

A: David says he understands his friend's points and calmly expresses his thoughts about which team is better.
B: David yells at his friend and calls him a moron for thinking what he thinks.
A.