A. a system in which those in need of supplies or protection give themselves in servitude
b. a system in which debtors repay those whom they owe by giving themselves in servitude
c. a system in which people are treated as chattel—that is, as personal property to be bought and sold

The correct answer is a system in which people are enslaved

permanently on account of their race

answer:

it caused mass african migration, african populations to grow, african empires to topple, and racism against slaves to emerge.

to reform the distraught soviet union, the democratization of the communist party was promoted through party secretary mikhail gorbachev's policies of “perestroika” and “glasnost.” perestroika refers to the reconstruction of the political and economic system established by the communist party.