The US economy actually benefited as it learned to produce its own goods.
Explanation:
A very important consequence for the US was the development of manufacturing during the war.
Namely, because of the permanent blockade of American ports during the war, Americans had to turn to producing what they had imported until then.
So they secured two things: the first is, of course, greater exports, and the second is that, with the opening of numerous manufactories, they have laid the foundation for later faster industrialization.
The answer would be D because Pre-Columbian civilizations didn't have any domesticated animals such as cows, chickens, and horses. This fact limited the accessibility to meat for the Pre-Columbian civilizations.
