Answer:
B. The desire of European nations to remain isolated, not forging relationships with neighbors.
Answer:
Dubois, Marcus Garvey, A. Philip Randolph, and Hubert Harrison "Black Socrates".
Hoped this helped. :)
I can only answer some of these but
3 - Harriet Beecher
4 - Popular Sovereignty
^ These are confirmed, I'm sure of it
Now, I'll assume on these ones
2 - Bleeding Kansas
1 - Wilmot Proviso
5 - Fugitive Slave Act
I apologize if I'm wrong on these
I think the answer for your question is 961,121.