Final answer:
The principle best reflected in this article is limited government.
Step-by-step explanation:
The principle best reflected in this article from the Articles of Confederation is limited government. The article states that each state retains its sovereignty, freedom, and independence, and only delegates powers not expressly stated in the confederation to the United States in Congress assembled. This illustrates the idea of limited government, where the central government has restricted powers and the states retain significant authority.
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