Have to be at a certsin months before ot can be done
<span>In-group classification is the classification that best fits the individuals on your "friend" list on facebook.
</span>Ingroup is term used in <span>sociology and social psychology.</span>
<span> It denotes a social group to which a person psychologically identifies as being a member.</span>
The friend list on facebook is example of ingroup on the social media.
Explanation:
The ans itself is in the question 'unification'. During the unification from chiefdom to kingdom the cooperation and collaboration emotion was developed after the built of Nation and Nationality.