Which method of data collection would you use to collect data for a demographic study at a small private company?

a. Perform an experiment

b. Use sampling

c. Use a simulation

d. Take a census

d. Take a census

Step-by-step explanation:

Demographic study is the statistical study of the human populations.

The study involves the change in feature of the population like births, deaths and migration etc.

Since the study done in the question is demographic study which is to obtain data from every member of a population it is census called as census.

Hence,

option (d) Take a Census