Final answer:
In a unitary system of government, ultimate authority is located at the national or central level.
Step-by-step explanation:
In a unitary system of government, ultimate government authority is located at the national or central level. In a unitary government, the central government holds most of the power, and local and regional governments are under the control or authority of the central government. Examples of unitary governments include the United Kingdom and France, where the national government rules over the provinces or departments and local bodies carry out the directions of the central government.