Answer:
Sanctioning
Explanation:
In the field of the social sciences, define sanction in as a reaction that could be in the form of a threat or a promise by members of a group showing their disagreement or agreement of a particular mode of conduct and how they try to enforce certain standards of behaviour in the group.
We can see this clearly in the joke Nelly's co-workers made. Just trying to let her know of her actions which they do not approve of.
