It was a hurricane (Hurricane Katrina).
Doc 1. 1917 was a time during war. The US did enter during this time, and also the Industrial revolution was still going. With tenements going up everywhere and factories producing needed products. Many families were poor at the time of this. There were workers needed. And who else than the relatively recently freed blacks (Pardon) as cheap labor for factories. Besides, the south had an unbelievable amount of racism still. The journey up north should've been very freeing.
Doc 2. Remember this was a time when there was still racism. Jim crow laws. The KKK (Klu Klux Klan) black people wanted out and now. There were lynchings. Set massacres. To find work elsewhere other than the literal (Pardon my french) hellhole in the south. To go up north was like heading to the promised land.
Hope this helps. (Now my head hurts from reading, Jk.)
Answer:
B. nationalism
Explanation:
Adolf & Benito preyed on the very fact that the economies of both their countries were low, along with the people's morale. They promoted socialism and nationalism, the latter of which was their secret weapon to try to conquer the world. They used nationalism to make people feel like they were a part of the greater good, and that they were special.
Hope this helps, and please mark me brainliest if it does!