Answer:
normative social influence was at work.
Explanation:
There are major two types of social influence including normative social influence and informational social influence and are a form of conformity.
Normative social influence: In social psychology, the term normative social influence refers to the form of a social influence that is being directed towards conformity. In normative social influence, an individual gets influenced by another person that makes him or her to conform to be accepted and liked by the person.
Example: Peer pressure.
In the question above, the given statement's findings suggest that normative social influence was at work.