Explanation
Population Census is conducted through (C) Complete Enumeration.
In a population census, every individual within a defined geographic area or country is counted, and their demographic information is collected. This process aims to provide an accurate and comprehensive count of the population. Instead of relying on sample surveys or partial enumeration, a complete enumeration ensures that every individual is included in the census, allowing for a detailed analysis of various population characteristics such as age, gender, occupation, and more.