The correct answer is the following: option A and option D. What makes the evidence effective is that it helps the reader better visualize just how many people work in the fast-food industry. And that it supports the reasoning that the fast-food industry values a younger workforce over adult workers.
The quote that is taken as an evidence makes a comparison between a film in which all the actors are children pretending to be adults and the real life fast-food kitchens. By doing this the evidence is effective in the sense that it helps the reader visualize how many young people work in fast-food chains thanks to the reference of a popular film, while still supporting the concept of fast-food industries relying mostly on a younger workforce than a more mature one.