Correct Answer:
Option C - According to the standard census definition, a person who works for at least 183 days, can be classified as a main worker in India, Those who do not work for the major part of the year are termed marginal workers.
C. According to the standard census definition, a person who works for at least 183 days, can be classified as a main worker in India, Those who do not work for the major part of the year are termed marginal workers.