Criminal preparation: refers to the act of preparing tools and creating conditions for crime. According to the above definition, among the following acts, the act of A is criminal preparation:. ['A. B, C, and D are planning to steal at a supermarket one night, and A will provide a tricycle. At that time, A will not go because of the harm. Then B, C, and D will use the tricycle provided by A to steal the supermarket A large number of expensive watches.', "B has revenge, and then seeks revenge. One day, when A learns that B is at home, he carries a dagger and walks to B's house. Sudden abdominal pain on the way, he has to return home.", 'On a certain day, he carried a dagger to B ’s house and was going to kill B ’s anger. He was patrolled by the joint defense personnel on the way. A was very scared and returned to his home.', 'A shoots at enemy Z in the bush and fires two shots without hitting B. B asks for forgiveness because of fear. A can no longer shoot if he can continue firing.']