Demography is the statistical study of trends and changes in human populations. Thus, the correct option is D). Demography.
What is Demography?
Demography refers to the statistical study of human population. It includes the study of human populations and population changes and trends by using different resources such as statistics of births, deaths, income and disease.
Demography is the scientific study which is important to understand the structure of a population in order to plan health and public health interventions, to know how far the growth rate of the economy is keeping pace with the growth rate of population etc.
Demographers are those researchers who conduct demographic analysis by using census data, surveys, and statistical models to analyze the size, movement, and structure of populations.
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