The North eastern United States
Answer:
Both the Zimmermann Telegram and British Sinking of the Lusitania.
But, mostly the Zimmermann Telegram
Explanation:
I think it might be Freedom of Speech, not really sure though.
One example would be economic opportunities. The possibility of a better job would pull someone to a new country. Hope that helps!
The Jim Crow laws enforced racial segregation, so B?? it might also be D though.
