In the stilmuli, based on my understanding, the structure of the argument is as follows:
Premise 1: The most compelling piecies of evidence for this are those few of the numerous articles submitted by Cotrell that are superior.
Premise 2: Since Cotrell, who is incapable of wrting an article that is better than average.
Premise 3: Cortell must obviously have plagiarized superior ones.
Conclusion:Cotrell is,at best, able to write magazie articles of average quality.
As mentioned in the correct answer choice, the flaw of reasoning is that it presupposes what it seeks to establish. Does it mean that the presupposition is Premise 2, which seeks to establish the conclusion with the same meaning?
I am quite confused about this question because I was wondering whether premise 1 and premise 2 shall also be considered. I finally chose A because I think there is possible a counterevidence for the author's claim about the plagiarism.(maybe the superior ones are not plagiarized).
So, could anyone share the thinking path toward this question? Thanks !