C is the answer I believe
The power to regulate interstate commerce is a power that is exclusively given to the American Government by the U.S. Constitution. The regulation of interstate commerce was a major issue during the times of the Articles of Confederation and was therefore an issue with the Constitutional Framers were sure to create in the new Constitution.
The plebeians exercise their rights of citizenships by dividing society Rome into two groups.
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The answer to the question is D