Robert Is 15 Years Old and Has Recently Moved to a New

Robert is 15 years old and has recently moved to a new town and therefore, a new high school. He was trying to get accepted by a group of kids that he wanted to be friends with. When they asked him to attend a party over the weekend, he said he'd have to ask his parents for permission. This group of students laughed at him and called him a "momma's boy" and told him he can't be one of them because they don't ask parents for permission, they just do what they want. This social disapproval of Robert's behavior is an example of a(n) _____.

A) norm
B) violation
C) sanction
D) precept
E) edict