Answer:
A. The richest people
Step-by-step explanation:
"Overpopulation at a Glance" talks about how people living in developed countries consume more resources than those who are living in less developed countries. This is because the richest people have consumption overload, which means they are consuming more than what they are supposed to consume because they the means to do so. Furthermore, they only comprise around 20% of the total population, yet they consume around 75% of the resources.
So, this explains the answer.