Study the following map of the tuberculosis pandemic. How does its impact on underdeveloped areas, like sub-Saharan Africa, compare with its impact on developed areas, like Western Europe?
A. Developed areas have been better able to prevent the spread and limit the effects of the disease.
B. People in underdeveloped areas have had less exposure to the disease due to a more agrarian lifestyle.
C. Economically stronger nations have been able to help economically weaker nations wipe out tuberculosis.
D. Tuberculosis has been equally devastating to all nations, regardless of economic development.