The correct option is A Fallen, fallen
Growth of population refers to the change in
the number of inhabitants of a country/territory
during a specific period of time, say during the
last ten years. Till 1980, high birth rates and declining
death rates led to a large difference between
birth rates and death rates resulting in higher
rates of population growth. Since 1981, birth
rates have also started declining gradually,
resulting in a gradual decline in the rate of
population growth.