The Swahili city-states Group of answer choices strongly maintained their Christian roots. dominated trade along the east African coast. spread Islam throughout Africa. succeeded in uniting Africa for the first time. became the dominant political force in west Africa after the collapse of the Mali kingdom.

What is true about the coins, shells, hides, and beads that have been used over time as currency? a.) they were usually found on island countries rather than in mainland-based countries. b.) they allowed the religious leaders to gain more wealth than their followers. c.) they were items of worth to the societies that used them. d.) they were always used by peasants rather than by the upper class.