Answer :
Answer:
D. waterborne endemic diseases.
Explanation:
People from developing countries, what used to be called “third world countries”, often experience problems with waterborne diseases —like diarrhea, sometimes very severe, and especially affecting children— that arise out of contact with water that is contaminated with certain bacteria or pathogens. These kinds of disease are propagated mostly because of the lack of the necessary hygienic conditions, due, in great part, to the economic strife that these countries are forced to endure.