Opposition to the proposed american system of internal improvements was a result of

Opposition to the proposed american system of internal improvements was a result of regional interests overriding national concerns.

Some explanation: The pro-states-righters argued that the federal gov't didn't have the power to fund the building of roads and canals, and it was up to each state to determine its internal improvements.

C, because he has a direct link and profit from the trade. the fastest way by boat to transport those goods is via the panama canal.