The answer to the question above is the Mali Empire became the world's largest producer of gold and Mansa Musa spread the Islam on Mali Empire.
The effects of Mansa Musa's rule on Mali Empire and West Africa is the Mali Empire became the world's largest producer of gold. He also spread the Islamic religion on Mali Empire and he made a pilgrimage to Mecca.
The purpose of the Berlin Conference of 1884-1885 was to put some order in the chaos of the colonization of Africa. It divided the continent up into specific areas for colonization.
Hudson river school that is the answer <span />
The answer to your question is C.