What is the main difference between federal and confederal systems of government
In a federal system there is no centralized authority, while in a confederal system power is distributed equally among the
states.
In a federal system there is no centralized authority, while in a confederal system local offices give advice to a centralized
authority
In a federal system there is centralized authority, while in a confederal system power is distributed equally among the
states.
In a federal system power is distributed equally, while in a confederal system the states have less authority than the
central government

C.In a federal system there is centralized authority, while in a confederal system power is distributed equally among the states.

Explanation:

In a federal system, power is shared by a powerful central government and the state or local governments. States or provinces are given considerable autonomy, usually through their own legislatures, while in a confederation, power is shared by an alliance of independent states, distributed equally among the states. They voluntarily work together for some common purpose and agree to certain limits on their freedom of action. They might sign a treaty or a constitution under which the states agree to defend each other, trade with each other, use a common currency, etc. Membership is usually voluntary & a state can decide to leave at any time.

to extend a country’s power and influence

it should be a. song dynasty’s civil service examination system created an administrative bureaucracy manned by the landed aristocracy.