Read the excerpt from the constitution of the united states, article 1, section 8.

[congress shall have power] to regulate commerce with foreign nations, and among the several states.

this excerpt reinforces the idea of

federal supremacy.

implied powers.

balance of powers.

judicial review.

federal supremacy.

The Supremacy Clause of the United States Constitution (Article VI, Clause 2) establishes that the Constitution and the federal laws constitute the supreme law of the land. This means that state courts and state constitutions are subordinate to federal law, and in case of conflict, federal law must be applied.

This is shown in the example, as it states that Congress has the power to regulate commerce among states.

the right answer is a