Answer:
In a <u>u</u><u>n</u><u>i</u><u>t</u><u>a</u><u>r</u><u>y</u> state, smaller member states agree to participate in forming a larger state.
It is actually A.Federal
Explanation:
Federal government is a government that is separated in small groups which decide decisions in different groups as they are all specialized in different topics. Together, they govern the state.