The answer is D the humiliation is what lead to the rise of the nazi party and Japan let that power get to them and they did the one thing that the League of Nations to them not to do which was start invading things
The answer is B
The movement of goods, money, and enslaved people that made up triangular trade
I'm pretty sure (1.) is A, and I know for a fact that (3.) is D because slavery was a regular practice between quarreling tribes. I have no clue what (2.) is. Best of luck.
To give African Americans a education so they had something to do with their life and could match up to the Whites in some form!