Final answer:
Pluralistic ignorance is a situation in which a majority of group members privately reject a norm but go along with it because they incorrectly assume that most others accept it. This phenomenon is best explained by pluralistic ignorance. It leads individuals to conform to perceived group norms even if those norms conflict with their personal beliefs.
Step-by-step explanation:
Pluralistic ignorance is a situation in which a majority of group members privately reject a norm, but go along with it because they incorrectly assume that most others accept it. This phenomenon can be observed in prosocial behavior when people don't help because they look to see what the group is doing. It is best explained by c) Pluralistic ignorance. Pluralistic ignorance leads individuals to conform to perceived group norms even if those norms conflict with their personal beliefs. This can prevent individuals from taking action, such as helping others in need, because they incorrectly assume that others do not think it is necessary.