The concept of separation of powers is a way to divide power equally among the three government branches while not giving one branch too much power over the others.
Military power and technology.
It would be B. A household consisting of a mother and father and their children. It would be a basic social unit.
I think the answer to this question would have to be B) Civic Responsibilities. The reason is that duties are more of paying taxes, serving jury, obeying the laws, etc.