D. It imposed taxes on merchants who used gold trade routes that passed through Ghana.
Explanation:
The Kingdom of Ghana or Ghana Empire was a West African empire that was located in what is now Mauritania and Mali. The empire gained prominence around the 7th century due to its profiting from the African gold-salt trade. One of the ways in which the kingdom became wealthy was by imposing taxes on merchants who used the routes that passed through Ghana.
No. The Crusades was a series of three conquests commissioned by the Catholic Church to free Jerusalem from the hold of the Muslims who were occupying Palestine.
