The entire south region of the United States.
D.)Most of its people continued to worship the old Songhai gods.
I'm assuming that the question is "what is the purpose of government?".
To answer the question, the purpose of a government is to protect civilians of the country, set laws, to set things straight. Imagine a world without a government, everything would be very out of control, and there would be no laws, so then everyone would be doing their own thing. So when there is a government, there's most definitely a purpose.
