Instrumental attacks refer to attacks with target guidance (the attack is used as a tool to reach the target) and knowledge base. According to this definition, Which of the following are instrumental attacks:. ['Night shift home, robbed, scared away with a fruit knife.', 'Two cars rear-end on the road, the driver comes down.', 'The classmate humiliates Xiao Gang, and Xiao-Gang picks up the cup and hits the classmate in anger.', 'The thief pushed an elderly woman to the ground and snatched her wallet.']