Which of these statements from "The Bet" shows that the banker has changed at the end of the story? A. "The banker, spoilt and frivolous, with millions beyond his reckoning, was delighted at the bet."

B. "The old banker was walking up and down his study remembering how, fifteen years before, he had given a party one autumn evening."

C. "At no other time, even when he had lost heavily on the Stock Exchange, had he [the banker] felt so great a contempt for himself."

D. "It's not true! I'll bet you two millions [rubles—about $66,000] you wouldn't stay in solitary confinement for five years."
"The banker went at once with the servants to the lodge and made sure of the flight of his prisoner."

PLEASE HELP ASAP! I'LL MARK BRAINLIST