What Barriers Did Nations in Africa Encounter as They Attempted

What barriers did nations in Africa encounter as they attempted economic development?

A) The World Bank and International Monetary Fund refused to lend them money for development projects because their workforce was too ill from contagious diseases.
B) Much of the male labor force had migrated to Europe where there was demand for cheap labor, leaving women and children to struggle to survive.
C) Few Western companies would invest in Africa or send workers there for fear of catching contagious diseases such as malaria, tuberculosis, or AIDS.
D) In addition to struggling with their emergence from colonial rule and economic exploitation by northerners, they experienced drought, famine, and civil war.