<span>Antiretroviral therapy</span>
Explanation:
Health, population, and environment are interrelated in many ways.
If we are observing one individual person and the health of that person we can see that the health of this individual is associated with the environment where that person is living. Rapid population growth is provoking massive environmental degradation because where there are much people, the environment can face great degradation.
I believe it could be answer A. Because when you are stabbed, it does alert your body. But also it could be answer D because you’re body does try to fight the bacteria.
Not much help sorry, I also could be completely wrong. Good luck