"The Laws of the United States…and all Treaties made, or which shall be made, under the Authority of the United States, shall be the supreme Law of the Land; and the Judges in every State shall be bound thereby…" Which system of government does the passage describe?

The passage describes a confederation. The central government has final authority.
The passage describes a federation. The state governments have final authority.
The passage describes a federation. The central government has final authority.
The passage describes a confederation. The state governments have final authority.