In the last chapter of American Born Chinese, Wei-Chen is revealed to be The Monkey King's son. The answer is letter A. This is because he was heartbroken about Jin being in love with another guy not him and this guy, which has the same blood as he is in love with Jin too. And so from then on, he changed his looks and personality citing that he do not want to be a slave to a human because they are soulless creatures.
