Many demographers expect world population to:

A) increase exponentially into the foreseeable future.
B) decline from its current level in the next two decades.
C) peak at 9 billion or fewer,and then decline.
D) plateau at around 7.5 billion,and then continue to increase rapidly.

Many experts predict that world population will peak at 9 billion by mid-century and then begin to decline due to lower birth rates and an aging population. This prediction takes into account the slowing of population growth rates and the decrease in fertility rates in many parts of the world. While population growth is still occurring, it is expected to slow down significantly over the next few decades.