What Is the Critical Difference Between the Deindividuation and the Norm

What is the critical difference between the deindividuation and the norm approaches to mob behavior?

A) The deindividuation approach focuses on frustration whereas norm theories focus on conformity.
B) The deindividuation approach focuses on in-group processes whereas norm theories focus on inter-group processes.
C) The deindividuation approach focuses on the loss of social norms in the mob whereas norm theories focus on the development of new social norms.
D) The deindividuation approach is a cognitive approach to mob behavior whereas norm theory is a sociological approach to mob behavior.