Concept:Overpopulation arises when the number of people in a region is too large compared with the available resources needed to sustain them.
Explanation:Having a high population density does not automatically mean overpopulation, because the region may still possess sufficient resources for its people.
A birth rate equal to death rate indicates a stable population size, not overpopulation.
An increasing birth rate with a falling infant mortality rate shows rapid population growth, but it does not by itself define overpopulation.
Overpopulation is best described when the population exceeds the available resources, causing shortages of food, water, shelter, and other necessities.
This condition puts heavy pressure on the environment and the ability of the area to support its inhabitants.
Answer:C. the population exceeds the available resources