Non-cause management refers to managing affairs for others without being entrusted and unable to determine or agree on obligations. According to the above definitions, Which of the following are not subject to causeless management:. ['At the request of A. B takes his 6-year-old child to the beach to play, and the child accidentally falls into the water, B rescues him.', "A and B are neighbors. A goes out to work. In order to avoid the typhoon's collapse of A's old house, B recruits and repairs the house.", "Is A's home lost? After B picks up the horse and finds the owner of the horse unsuccessful, he keeps it in his own home. Hou A finds B and retrieves the horse.", 'In the season when the fish raised by A is upright, A suddenly goes out due to urgent matters. B sees that A is not selling the fish he raised. After A returns, deduct the cost of sales and give the remaining money to A.']