The law of crocodile in economics comes from the recognition of a scenario: suppose a crocodile bites your foot, if you try to break free of your foot with your hand, the crocodile will bite your foot and hand at the same time. The more you struggle, the more you get bitten. So, in the event that a crocodile bites your foot, your only way is to sacrifice one foot. According to the above definition, Which of the following practices are in compliance with the law of crocodile:. ['husband B has a serious mental illness. He often beats his wife A after being drunk, and then kneels to admit his mistake after waking up. A forgives B again and again.', 'Qin signed up for an exam training and found that the teacher was not doing well and the management was confusing, but considering that there is no refund treaty, he insisted on going to class every day.', 'A has held a stock for a long time and quadrupled in two years. The recent trend has fluctuated. A decided to sell this stock.', "Gao just registered a company, but as a result of national policy adjustments, the company's original investment direction could not be profitable, Gao decided to cancel the company."]