Assuming this is talking about WWII era Germany and Italy, I'd say it's B) Nationalism.
They thought it meant parties.
I found a link on a website (also part of brainly) that answers this question well
I’ll link it below and if you need further help comment below :)
brainly.com/question/11470998
Answer:
Four score and seven years ago our fathers brought forth on this continent a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal. Now we are engaged in a great civil war, testing whether that nation or any nation so conceived and so dedicated, can long endure.
Explanation:
Answer: B It demonstrated his commitment to fighting the spread of communism even if Americans did not approve it
Explanation: just took the quiz and got it right