Which of the following statements best describes how endemic diseases impact a nation’s population?
a.

endemic diseases can result in decreasing population numbers: many people die from diseases, and others move away from or avoid moving to places where diseases are rampant.

b.

endemic diseases can result in increasing population numbers: people living in areas where certain diseases are prevalent tend to have more children because there is a risk that some will die.

c.

endemic diseases can result in decreasing population numbers: people living in areas where certain diseases are prevalent tend to have fewer children.

d.

endemic diseases can result in increasing population numbers: areas where certain diseases are prevalent attract more medical professional and researchers who move to these areas for jobs.