Essayist: One of the claims of laissez-faire economics is that increasing the minimum wage reduces the total number of minimum-wage jobs available. In a recent study, however, it was found that after an increase in the minimum wage, fast-food restaurants kept on roughly the same number of minimum-wage employees as before the increase. Ttherefore, laissez-faire economics is not entirely accurate. The essayist's argument depends on assuming which one of the following? ['If laissez-faire economics makes an incorrect prediction about the minimum wage, then all the doctrines of laissez-faire economics are inaccurate.', 'The national unemployment rate did not increase following the increase in the minimum wage.', 'Minimum-wage job availability at fast-food restaurants included in the study was representative of minimum-wage job availability in general.', 'No study has ever found that a business has decreased the number of its minimum-wage employees after an increase in the minimum wage.']