Ethical credit refers to an ethical relationship caused by certain pre-agreements, contracts, commitments, vows, etc. in people's interactions, and the underlying rationale order is condensed to adhere to promises and fulfill the agreed moral standards. The understanding of order and the practice of rules have formed corresponding moral conduct. According to the above definition, which of the following is related to ethical credit? ["Chen saw a group of people besieging the neighbor's children. He ran forward and drank loudly while calling the police.", "Zhao agreed to her husband's dying request. After the death of her husband, she treated the two children left by her husband's ex-wife as if they had raised them and raised them as adults.", "Wang's father once lent Zhang a 100,000 yuan. After the death of his father, Wang asked Zhang to pay the money back.", "There was a flood disaster in Li's hometown, and many farmers failed to harvest. His father asked him to start his company employees and WeChat circle friends to donate money and supplies."]