The administration of government through departments and subdivisions is called

Diplomacy is the practice of managing international relations, typically by a country's representatives abroad. It usually involves negotiations, political discussions, and strategies to maintain peaceful relations between countries. Therefore, diplomacy is not the correct answer as it does not refer to the administration of government through departments and subdivisions.

Democracy is a system of government where the power lies in the hands of the people, who can elect representatives to make decisions on their behalf. While democracy can employ bureaucracy for administrative purposes, the term itself does not refer to the administration of government through departments and subdivisions.

Autocracy is a system of government controlled by one person with absolute power. This can include systems like dictatorships or monarchies. While an autocracy may have departments and subdivisions, the term does not specifically refer to the administration of government through these entities.