5. (PLEASE HELP) How was Islam able to cross the Sahara Desert in the eighth century?
A. At the time, the Sahara Desert was smaller and less harsh than it is today.
B. African slaves escaping from their Arab owners brought Islam home with them.
C. A Muslim army went south to conquer African kingdoms in Ghana and Sudan.
D. Muslim merchants from North Africa followed trading routes through the Sahara Desert.