The answer is C. Children from every social class were required to go to school.
Before the Industrial Revolution, education was in the hands of the church and only few people learned to read and write. Within the industrial revolution began the massification of education and since it now belonged to the state, public education expanded. With an interest in productivity and industrialization, governments were more aware of the value, in terms of productivity, of educating the population, therefore, the first laws concerning compulsory education.
