All of the following are true statement about the powerful African slaves known as the Mamluks EXCEPT

Athey had been captured as children.
Bthey were forced to convert to Islam.
Cthey controlled the greater portion of West Africa.
Dthey were trained to serve the sultan as cavalier soldiers.

Someone answered, whose nametag I won't say, but they were wrong. The CORRECT answer is 'C. they controlled the greater portion of West Africa', for even though they were powerful, they did not control this part of Africa.