__________ is the study of the size and composition of a population.A.MigrationB.Birth and mortalityC.DemographyD.Life expectancy

Analyzing the Question

In this question, we are looking for the term that describes the study of the size and composition of a population. Let’s evaluate the options provided.

1. Migration: This refers to the movement of people from one place to another, typically in search of better living conditions or job opportunities. While migration affects population size, it does not describe the study of population itself.

2. Birth and mortality: This encompasses the rates of births and deaths within a population. These factors contribute to the overall study of populations but do not define the specific study itself.

3. Demography: This is the statistical study of populations, including the structure, distribution, and trends in population size. It directly pertains to the study of the composition and size of a population.

4. Life expectancy: This term refers to the average period that a person may expect to live, based on statistical averages. While it relates to population studies, it is not the overarching term for the study of population size and composition.

Final Answer

The correct answer is C. Demography.