The correct answer is 2. Isolationism
Following world war 1, United States didn't want to mess with European affairs because they understood how bad the war was and didn't want to participate in it again. That's why when Wilson wanted to join the League of Nations they declined and the US remained on its own.
"A" would be the correct answer. Even though the main goal of the voyage was to find a different sea route to Asia. Bartolome and other Portuguese explorer have also made stops along the African coast and started to realize how could of an alternative they would be compared to the Mediterranean trade routes.
I'm positive with the answer tho
C. Arkansas because it is not on the east cast.