I think that the answer would be A.) to keep African Americans in rural areas. they wouldn't have wanted the African Americans to stay in the rural areas because they wanted all that wide open space to themselves; hence the ghettos in urban areas.
The correct answer is B. The americas
The Americas provided raw materials that were taken to Europe. Europeans manufactured goods from these materials and traded them to Africans in exchange for slaves. Slaves were then taken to the Americas to get new raw materials. That's how the triangle worked.
I think it is B because they had fertile farmland
C. Khrushchev was pushed out of power two years later because of his appeared weakness. Castro said he backed down, while Soviet hardliners were upset.