The voyages of Columbus in 1492 led directly to a period characterized by (A) the expansion of control by the most warlike states of the Americas.
(B) Amerindians attempting to flee the Americas in the face of European aggression.
(C) increased European interest in transoceanic travel and trade.
(D) incursions by dominant Amerindian tribes into tributary states.

Can someone please help me, I don't understand this question.

albany plan of union, 1754. the albany plan of union was a plan to place the british north american colonies under a more centralized government

powers  are  denied  to the  national governmentin three distinct ways: some  powers, such as the  power  to levy duties on exports or prohibit the freedom of religion, speech, press, or assembly, are expressly  denied  to the  national government  in the  constitution.

roosevelt essentially took the opposite approach as hoover in taking on the great depression. herbert hoover thought that america and its economy could naturally recover from the depression in due course, so he adamantly restrained the federal government from intervening on behalf of the people affected. on the other hand, roosevelt dramatically increased employment by expanding the federal government and establishing agencies that would aid in relieving some of the country's worst problems.