Normally, helping marginalized workers find consistent work is a good thing. The tone of this piece would indicate that the author sees this as a bad thing because the fast food industry is taking advantage of the marginalized groups like the young, poor, old and handicapped. What evidence does the author use to show that the fast food industry is taking advantage of the vulnerable? a. No other industry in the United States has a workforce so dominated by adolescents. About two-thirds of the nation's fast food workers are under the age of twenty. b. The fast food industry's obsession with throughput has altered the way millions of Americans work, turned commercial kitchens into small factories, and changed familiar foods into commodities that are manufactured. c. "When management determines exactly how every task is to be done… and can impose its own rules about pace, output, quality, and technique," the sociologist Robin Leidner has noted, "[it] makes workers increasingly interchangeable."