The Bantu migrated to East Africa and displaced other tribes. Option B is correct.
The Bantu expansion constitutes a significant series of migrations of the original proto-Bantu language speaking group, who expanded from an their place of origin around West Africa-Central Africa across much of sub-Saharan Africa. In the process, the Proto-Bantu-speaking settlers displaced pre-existing hunter-gatherer as well as pastoralist groups that they encountered.
They Decided that Dred Scott was African American, so he was not entitled to his freedom.
The court was doing only what its justices did. The court said no just like how 8/10 of the justices descented.
Both were autocratic. Definition of Autocratic: Ruled by one figure.