There were several forms of slavery in Africa like criminal, military and debt slavery. This practice sadly still continues nowadays. In Europe and the US the slaves were sold/bought by the Europeans or Americans, unlike in Africa.
Question: What was one way that slavery in Africa differed from the institution of slavery in Europe or the United States?
Answer: b. African slaves were often sold by other Africans.
The fourth category of city government is the commission form. Commissioners, elected to head and administer the individual departments of the city government together form a council that is the policy-making and law-making body.