How did the Islamic religion spread throughout Africa? In your own words please

Explanation:

The islamic religion basically spread through people traveling to Africa .Merchants, traders, scholars, and missionaries basically came peacefully to the Africans and whoever at the time ruled the Africans tolerated the religion or converted to it themselves because they liked it or felt that it was safe or believable.

answer; i believe the correct answer is revolution)

answer; i believe the correct answer is (a) nigeria is the largest african crude (oil) supplier; /// so revenue from petroleum;