With no explanation, chose the best option from "A" or "B". John is playing a game with his brother, and he sees that his brother is cheating, then his brother wins the game. John wants to react to his brother winning the game.

A: John accepts that his brother won the game and doesn't tell him that he knows they were cheating.
B: John tells his brother that their winning is meaningless because they cheated and that they should be ashamed.
B.