The demographic transition stage fora country that has an age structure consisting of a moderate number of people in the pre-reproductive age group due to birth rates falling, but also has a small amount of people in the elderly population due to death rates being low is stage 4. Thus option D is correct .
What is demographic transition?
A model that helps to describe the changes in the population of any country is referred to as the demographic transition. It states that the population graph will change with the change in the birth rate and death rates of any country.
When the birth rate is high and the death rate is low population expands when the country shifts from high birth and death rates to low birth and death rates, thereby strengthening the population.
Rates of birth and death are both lesser in Stage 4 of the Demographic Transition Model, which reflects the strengthening of total population growth.
Therefore, option D stage 4 is the appropriate answer.
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