Which of these events occurred during the Ghana Empire?

A. Timbuktu was developed into a center of learning.

B. Islam was introduced into the West African region.

C. Moroccan invaders conquered the empire.

D. A large amount of technology was developed

The correct answer should be B. Islam was introduced into the West African region. As islam moved from the far east, it started spreading through africa which is why you now have all countries in northern Africa to be islamic. This includes countries like Morocco, Algiers, Tunisia, Egypt, and some to the south.