Which system concentrates power at the national level?

• A. Federal
• B. Confederal
• C. Monarchical
• D. Unitary

Answer: (D)

Power concentrated at the national level means the central government is the main sovereign authority. In a unitary system, sovereignty rests in a single central government, and local or regional authorities exist mainly to carry out central policies. Their powers can be created, altered, or removed by the central government, making national decisions the ultimate authority. This differs from a federal system, where national and subnational governments share constitutional power; a confederal system where subnational units hold most of the power and the central government is weak; and a monarchical form, which describes the head of state rather than how power is distributed. So, a unitary structure best fits the idea of concentrating power at the national level.