I believe the answer for this one is that the Nazis blamed the Jews for social, political, economic conditions in Germany. The Germans would soon take it to the extreme, and "punish" them by committing one of the worst crimes possible, genocide, because of the Anti-Semistic views.
Internal im pretty sure
explanation:
Since the U.S. was fighting against communist nations in WW ll, I'd say answer A.
That was when the U.S. first realized how dangerous communism is, since the whole nation in a sense follows the wants of one man.
Fighting against Hitler, Mussolini, and the other guy (I can't remember who it was) really opened America's eyes to the horrors of communism, which is why they decided to strengthen the Democratic side of America.
I believe answer A. is correct.
:His head stone reads "I know no north,no south, no east, no west"
I think it’s the printing revolution over the agricultural revolution