Answer:
As the clan families become large it gives rise to chiefdom
Step-by-step explanation:
A clan refers to a group of individuals linked by kinship in real or perceived form. While specifics of the descent are unclear, members of the clan may be grouped around a prominent member or an apical ancestor, which fosters unity among them. As clans began to extended there was a need to choose a chief or leader to make collective decisions and resolve conflicts among the members.