Read the Scenario and Answer the Accompanying Questions

Multiple Choice

Read the scenario and answer the accompanying questions.
As has been well-documented in recent years, certain populations and geographic regions can be much more vulnerable to environmental health issues like malaria and the use of DDT. Growing populations, with over 20-30% infected with HIV/AIDS, global climate change, and an environment that has experienced DDT applications for over 50 years, have led to increased outbreaks of malaria in the tropical regions of Africa.
-Which of the following nonhuman- related causes has most likely contributed the most to the increase in malaria in Africa?

A) growing urban populations
B) less money for mosquito abatement programs
C) increased vulnerability of HIV- infected humans to malaria
D) increased difficulty in treating malaria with antibiotics
E) increased insecticide resistance