Gibbons v. Ogden addressed Congress's power to control interstate trade under . The Supreme Court's decision reinforced the idea of , which said that the national government had higher authority than the states.

Gibbons v. Ogden concerned Congress’s authority to regulate interstate trade under the Commerce Clause, so A is correct. The decision also supported the principle that federal law takes precedence over conflicting state law, known as federal supremacy; that concept is not among the listed choices.

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