Realists See Which Threat Emerging from Current Demographic Trends

Realists see which threat emerging from current demographic trends?

A) The developed world is likely to outpace the developing world in terms of population growth, leading to conflict between these two sets of states.
B) Rich capitalist states will exploit poorer states to acquire their population as labor.
C) States with growing populations and insufficient food might seek to expand their territory and acquire food by means of war.
D) The faster population growth in developed states will lead them to be better able to go to war with developing states.
E) Realists do not see threats emerging from current demographic trends.