Answer:
I believe the answer would be Mesopotamia
Explanation:
Savanna grassland conguers most regions in Sub-saharan africa. The grassland Biome is found in the central part of the country, inland areas, and Kwazulu natal and its topography is mainly lowland and flat.
Europe and America used slaves for labor so the slaves in America or Europe are subtracted from the South African population.
I believe the answer is a handful of wealthy farmers.