Why was it an economic (money-making) advantage to keep the transportation costs of products
and resources low?

your answer will be b. improving roads, bridges, and other infrastructure. hope i !

c, because the american revolution was from 1765 to 1783.

roosevelt believed that in light of the country's recent military successes, it was unnecessary to use force to achieve foreign policy goals, so long as the military could threaten force. this belief, and his strategy of “speaking softly and carrying a big stick,” shaped much of roosevelt's foreign policy.

slavery because it wasnt a role of government