I think a wealthier, growing human population because, many people will have different opinions in things and they will do stuff that people don't think other humans wild o. Plus a growing populations is bad since the government has to make new houses in order to get those people in. More houses means more trees being cut down and means more pollution to the air, which means less oxygen, which means people fighting and starting wars to get that oxygen and then, everything is gone, just like that, Gone nothing is going to be there. So, I think the answer is A. A wealthier, growing human population
Hope it helps :3