What impact did chief justice john marshalls interpretation of interstate commerce have

Federal government was given considerable regulatory power on commerce, as well as on interstate commercial maritime routes. Chief Justice John Marshall's interpretation clarified that Congress could regulate matters internal to a state that are fundamentally intertwined with interstate commerce, like the New York monopoly.Congressional power extended to all aspects of the regulation, overriding any state laws contrary to it.

The answer is c because i know the answer is c