What were some of the economic differences between the north and the south before the civil war?

Which statement best summarizes the colonial system belgium created in the congo free state? o a. belgians relied on threats and brutal violence to force natives to work on rubber plantations, o b. belgians encouraged mass immigration from europe to force natives from their lands. o c. belgians improve local economies but stripped natives of their political rights. d. belgians offered natives political equality only if they gave up their traditional beliefs