B. Using humor is likely to draw more attention to his words, as varying tones and tactics leave people wondering what is next to come.
( I'm sorry I'm assuming) People are trapped in history is the person's good/bad memories and will always remind themselves of things they did in the past, and history is trapped in them is sort of like you're a part of the history and you can't change the fact that you're in it. Again I'm sorry if this is not correct.
Answer:
He seems to be a believer of if you are under the accusation than there was something you must have done to put yourself in that type of situation.