The correct answer is: B) 10 years
The Census of India is a decennial census of India, conducted by the Office of the Registrar General and Census Commissioner, India. It is the largest administrative exercise in the country, involving the enumeration of the entire population of India. The first census was conducted in 1872, and the most recent census was conducted in 2021.
The census is used to collect data on the population of India, including age, sex, religion, language, education, and occupation. The data is used to plan for the development of the country, and to monitor the progress of development.
The census is also used to determine the number of seats that each state has in the Lok Sabha, the lower house of the Indian Parliament.
The census is a vital tool for understanding the population of India, and for planning for the future of the country.
Here is a brief explanation of each option:
- Option A: 5 years. This is the frequency of the census in some countries, such as the United States. However, the census in India is conducted every 10 years.
- Option B: 10 years. This is the correct answer. The census in India is conducted every 10 years.
- Option C: 15 years. This is not the frequency of the census in India. The census is conducted every 10 years.
- Option D: 20 years. This is not the frequency of the census in India. The census is conducted every 10 years.