The phenomena of child labour is quite complex. Children work because they belong to poor families who cannot survive without the benefit of the income which accrues to the family on account of child labour. Any attempt to abolish it through legal recourse would, under the circumstances, not be practical. The only alternative is to ban child labour in hazardous areas and to regulate and ameliorate the conditions of work in other areas. Many developing countries including India have accepted this approach. In the passage 9, which of the following supports the statement "the prediction ... borne out by history"?A. Capitalism has just survived but not taken firm roots.B. The salaries of the employees have gone up in advanced countries.C. Technological development has not taken place in capitalist countries.D. The salaries of all the employees have gone down in all the countries.