With fifty member states that retain their own rights, the United States is an example of a(n) state. A.
autocratic
B.
federal
C.
unitary
D.
theocratic

Federal

Explanation: With fifty member states that retain their own rights, the United States is an example of Federal republic state. That means that each state has their own constitution and government and coordinates with the main federal government.

answer; (b); i believe its indefinite existence of human population in a healthy and prosperous condition;