Regarding Overpopulation, Which of the Following Statements Is FALSE

Regarding overpopulation, which of the following statements is FALSE?

A) Problems of crowding, pollution, and wasted resources are based on human behavior and can only be solved by changing people's behavior patterns.
B) Traffic congestion, noise, overstimulation, and impersonality are sources of urban stress.
C) The effects of overpopulation are evident in the cities of underdeveloped nations as well as on the subways and living quarters in large cities in Western societies.
D) Human and animal experiments have shown that overcrowding affects humans, but not other animals.