Where did the articles of confederation place the most government power

After winning its independence from Great Britain in the Revolutionary War, the new country situated on the eastern seaboard of North America needed to fashion some form of governmental system. The Articles of Confederation represent the first constitutional agreement made between the 13 American states. There was a need for unity among the new states that were created as a result of the American Revolution. The relative powers of the individual states and the Continental Congress also needed to be defined for the young country. These realities led Congress to entrust John Dickinson with the drafting of a federal constitution.

Ibelieve he answer is a, but correct me if i'm wrong.