Su Qin, an ancient man, was humiliated and eventually became an academic school, which just confirmed the famous saying "If you don't get angry, you will get angry", showing the two poles of people's emotions. I also think option B should be chosen, because he was influenced by some external factors, which made him realize or intensify some emotions in his heart. Let them work hard, which can prove that you said "don't be angry". If people are angry, they can take revenge and guide their students to study hard and work hard in abnormal and masochistic ways. So it's B. His situation changed because of certain conditions.