Ian is a lead server at a restaurant. He is responsible for training and leading a team of servers. He typically assists his team with handling problems related to displeased customers and incorrect orders. When an unexpected problem occurs, such as when something in the kitchen breaks down, he will go to the manager for help. Although he can typically manage many matters on his own, Ian goes to the manager on a sporadic basis. What primary method of control is in use? Group of answer choices Observation Clan control Standing plans The exception principle