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.

dominated trade along the east African coast.

Explanation:

The Swahili city-states were made up of mainly Muslims and they also spoke Swahili language. They also had big mosques that was made using local coral stone where they gathered and worshipped.

The Swahili city-states dominated trade along the east African coast.

the answer to your question is:

strong-mayor system