What flaw occurs in the chemist's report on the cold remedy when describing it as "below average"?

Describing the cold remedy as "below average" reflects the flaw of selected instances because it implies a judgment based on limited or possibly non-representative data. This choice focuses on how the assessment may be based on a small number of trials or reviews that do not accurately represent the overall effectiveness or quality of the remedy. If the chemist only references particular cases or instances where the remedy did not perform well, this does not necessarily justify a broad conclusion about the entire product's efficacy.

In contrast, the other options, such as composition, non sequitur, and division, do not directly address the issue of evaluating the remedy based on potentially skewed perspectives or selective examples. The selected instances critique focuses on the way the evidence is gathered or presented, highlighting the need for a more comprehensive or balanced evaluation to ensure that conclusions are valid and reliable.