A. Only the federal government had the right to control interstate commerce.
Explanation:
This case began because New York gave one man a monopoly over the Hudson River, which runs through more than just NY. The case ended up in The Supreme Court with John Marshall as Chief Justice. In the constitution, it stated that the federal government had power over the state government. This meant that the states could not do anything to override the federal government. So, in the end, it was decided that only the federal government could control trade between or across states.
