Much like many other countries, the US foreign policy was based in isolationism which resulted in new restrictions on immigration and a lack of membership in international organizations. There isn't a good explanation as to why it was isolationist in the first place besides the fact most countries were at that time so it made it easier for the US to do the same.
Eugene Debs became a socialist in 1897 while c) serving time in jail. He was incarcerated after he was complicit with the Pullman Strike and he read various social works and became a more radicalized social worker than when he had gone into jail. This was when he became a founding member of three different American socialist parties.
B. That Nixon should be given more time to win the war in
Vietnam
I only know question 1 and 2
The answer for question 1 is the last one and
Question 2 is the second one
B. a series of rulers chosen by the people of a country