Answer :
Under the unitary system, the ultimate authority is assigned to the national government, while the subnational governments can only exercise the powers the central government chooses to delegate to them.
In the field of social studies, the unitary system of government is the one in which the major authority is in the hands of the national or central government.
In the unitary system of government, the ultimate authority is given to the national government and it is only the powers that are decided by the national government which are given to the subnational government. A unitary system gives power to only one government. All rest have to obey the commands of the national government.
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