Which of these events occurred first?
A.the fall of the Songhai Empire
B.the fall of the Mali Empire
C.the introduction of Islam into West Africa
D.the entrance of Portuguese explorers into African territory..

Respuesta :

The correct answer is C.the introduction of Islam into West Africa 

Whereas other options happened in the 16th and the 17th century, the introduction of Islam into West Africa was as early as the 10th century.