The correct answers are A, C and E.
Demography is the statistic study of population in a particular time and a particular area.
A demographer explores the topics of:
- birth and death rates. He crates tables to compare both rates in order to establish a positive/negative population growing pattern.
- population density of certain areas to see how the population is distributed. This helps local governments create adequate public services like schools, or it helps businesses in choosing location for their ventures.
- patterns of migration to certain areas. This is necessary to see how outside changes affect the population and to see the results of it, including immigration and emigration.