I think the correct answer from the choices listed above is option C. THe claim made in Fast Food Nation is Crossen refuting with the statement above would be that the <span>quick production of fast food has had a negative effect on the quality and safety of the products.</span>
Option A: How well do elements of the text help the text achieve its goals?
The two last options are related with the interests of the reader and not only with the text. The option B, is not exactly about the text but more about the author. The option A really intends to assesses the text.
I don't see any following options to answer your questions.