[amp_mcq option1=”Officials of the trade union” option2=”Married employees only” option3=”Educated employees only” option4=”All labours” correct=”option4″]
The correct answer is D. All labours.
The universe is the population or group of people from which a sample is drawn. In this case, the universe is all the workers of a factory. This is because the study is about the economic condition of all the workers, not just a specific group of workers.
Option A is incorrect because the officials of the trade union are not the only workers in the factory.
Option B is incorrect because married employees are not the only workers in the factory.
Option C is incorrect because educated employees are not the only workers in the factory.