Answer:
George washington was the first president of United States
if you're using plato/edmentum, the answer is A.
It was the "B. Plebeians" who made up the majority of the roman population and became citizen-soldiers during the time of war, since these were the "common" people as opposed to the elite.
The answer should be the first one : a return to normalcy and isolationism. The reason for this is because they wanted to keep out of foreign affairs from there on out. Obviously that did not work out as well as hoped since Americans were forced into the 2nd World War as well as the Korean and Vietnamese wars. Hope this helps!