Musa I of Mali (Mansa was their name for "King" or "Emperor") was a devout Muslim and his actions, such as his pilgrimage to Mekkah, which he did along with a huge number of slaves, contributed to the spread of the Islamic culture and religion.
It was the foundation to law, therefore it brought law and order to the empire.
The correct answer for this question is this one: market and demand.
If the raw market cost for producing a particular good is lower for one producer than another the former producer has demand for producing the good. Hope this helps you answer your question.
Teasing and name calling from her classmates
