Concept:The first Mansa of the Mali Empire to embrace Islam was Barmandana.Explanation:Barmandana was an early ruler of Mali.He accepted Islam under the influence of merchants and scholars.His conversion came before the reign of Sundiata Keita.Sundiata founded the empire, while Mansa Musa made it famous later.Mansa Sulayman was also a later ruler.Therefore, the first king to accept Islam was not Mansa Musa, but Barmandana.Answer:B. Barmandana