I'm not sure but probably A.
Answer:
The trans-Saharan trade was an important gateway for the spread of Islam in Africa. The legacy of the medieval empires and nineteenth century reform movements continues to have relevance in present day Senegal, Gambia, Mali, Nigeria, Burkina Faso, Nigeria, as well as many neighboring communities. The main items traded were gold and salt. The gold mines of West Africa provided great wealth to West African Empires such as Ghana and Mali. Other items that were commonly traded included ivory, kola nuts, cloth, slaves, metal goods, and beads.
Hey!
Hope this helps...
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I do not believe there is the right reason for any country to go into war. Although if I had to pick one reason that a country might go into a war, or a reason that could be justifiable for going into war. My decision would be going into war to protect an ally from an invasion.
This is not because of the thought of war, this is because if a country lose his allies, it would be defenseless when war is thrust of the pawn that country who needed that Ally.
So i would say the answer is: B.) to protect an Ally from an invasion.
