The answer is Cuban Missile Crisis, hope i helped!
I think it’s C but don’t trust me on my word
F.D.T
if u don't know what that means then u appreciate him
Northern: No slaves, mostly republican (our democrat) ideas, economy was based on trade and business
Southern: Slavery was supported, mostly (our idea of) republican, their economy was based on plantations and slaves
Hope this helps! Please let me know if I'm wrong or missed something. :)