Question

Instead of relying upon a small, stable, well-paid, and well-trained workforce, the fast food industry seeks out part-time, unskilled workers who are willing to accept low pay. Teenagers have been the perfect candidates for these jobs, not only because they are less expensive to hire than adults, but also because their youthful inexperience makes them easier to control.
In this excerpt, Schlosser claims that fast food restaurants are
taking advantage of people to save money.
helping society by hiring unskilled workers.
providing valuable training for teenagers.
using highly skilled workers in low-paying jobs.

Answer 1

Taking advantage of people to save money.

Answer 2

Answer: The answer is indeed the first option: taking advantage of people to save money.

Explanation:

According to the excerpt, the fast food industry does not hire teenagers with the purpose of offering them high quality training or of helping society. Teenagers are hired because, since they have little or no training and experience, they turn out to be a cheaper and more controllable workforce. That means restaurants save money by paying lower wages, and also make sure their employees will not trouble them by demanding better conditions since such inexperienced employees don't know any better.