I think the answer is D. I am not really sure
There was a lot of patriotism after 1812. It was essentially the second revolutionary war.
The US actually gained territory in the south (West Florida from Spanish).
Manufacturing grew during this time to supply the war effort.
A ton of natives were killed during the war (10000 according to wikipedia), so there was a lot less resistance from the natives.
The correct answers are 1, 2, and 4.
Answer:
The Age of Exploration was rooted in new technologies and ideas growing out of the Renaissance, these included advances in cartography, navigation, and shipbuilding. The most important development was the invention of first the Carrack and then caravel in Iberia.