An example of a modern conflict would be answer A.) “measles emerging in unvaccinated communities.”
The definition of an epidemic refers to the rapid spread of a sickness or a disease of some sort. Answer B would be incorrect because a tornado is a natural disaster, meaning it cannot be prevented.
Answer C would be incorrect because heatwaves also cannot be altered or prevented.
Answer D would be incorrect because no illness is mentioned here and this would be more of a population conflict.
This leaves us with answer A. Answer A is correct because measles are an illness and can emerge in unvaccinated communities.
Therefore, option A is correct.
