B.
The Irish Potato Famine, which occurred from 1845 to 1852, led to a mass migration of Irish citizens to the United States after a failed potato crop.
For the first question the cold war existed because an ideological war existed and for the second question I will have to say political because I did a lot of research and a lot of reading and I just assumed it was political let me know if you got it right hopefully I helped have a good day :)
False. The American south was build on slavery and independence in thier eyes would secure the future of slavery.