Consider the following argument: "Our new 'Everlast' brand batteries are superior because they are favored by 9 out of 10 professional athletes who endorsed them in our latest marketing campaign." What is the primary logical flaw in this argument?

The correct answer to the question "Consider the following argument: "Our new 'Everlast' brand batteries are superior because they are favored by 9 out of 10 professional athletes who endorsed them in our latest marketing campaign." What is the primary logical flaw in this argument?" is Option C: It relies on an appeal to authority that may be biased or irrelevant..

The other options — A) It appeals to emotion rather than reason., B) It uses an unsubstantiated claim about battery performance., D) The sample size of 10 athletes is too small to be statistically significant. — are incorrect for this GED Exam Prep question. As explained above: The argument uses an appeal to authority, but professional athletes are not experts on battery superiority. Their 'favor' is likely due to endorsement fees, making their authority biased and irreleva…