Answer:
Reference group
Step-by-step explanation:
A reference group is a group to which we compare ourselves. We use reference groups in order to guide our behavior and attitudes and help us to identify social norms.
Charlie attitude and behavior is as a result of his reference group, which is his coworkers, he compares himself to them and does everything he can to be like them.
O ther examples are team members, groups people belong where everyong is trying to compare themselves with the next person.