Ethnicity and race are the population characteristics that demographics usually measure. So, option (c) or (iii) is the correct answer.
Demographic analysis is the study of a population based on factors such as;
Socioeconomics is used by states, partnerships, and non-governmental organizations to analyze a population's characteristics for a variety of reasons, including strategy improvement and monetary statistics surveys.
The following are some of the findings of the demographics study:
People in a group's age and gender
People in a group's race and ethnicity
Population shifts as a result of migration
Population changes as a result of births and deaths
For more information about demographics, refer below
https://brainly.com/question/16078936
