With no explanation, chose the best option from "A" or "B". Bob's son Biff punched a classmate in the nose at recess. Bob wants to impress on Biff that hitting his classmates is unacceptable.

A: Biff calmly explains that violence is unacceptable and that he is disappointed in Biff's behavior.
B: Bob spanks Biff and threatens to do so again if Biff ever raises a hand to a classmate.
A.