Why was the Cumberland Road an important achievement of the American System?

This is what i think it is-

Explanation:

connected the Potomac and Ohio Rivers created a transportation link between the coast and the interior improved trade routes

increased the amount of goods traded between the interior and the coast.

answer; andrew jackson approved nullification by signing it into law,and john calhoun opposed it saying it was unconstitutional;

the correct answers are: 1) lay and collect taxes and duties; 2) pay debts; 5) borrow money;   6) regulate commerce with foreign nations.

article 1, section 8. refers to the powers of congress. according to the united states constitution: “the congress shall have the power to lay and collect taxes, duties, imposts, and excises, to pay the debts and provide for the common defense and general welfare of the united states.”