Final answer:
The appeal strategies ethos, pathos, and logos pertain to ethical credibility, emotional influence, and logical reasoning, respectively. The student's statement about failing, despite a history of good grades, lacks logical reasoning (logos) as no evidence or rational explanation for the anticipated failure is provided.
Step-by-step explanation:
In the context of rhetoric and persuasion, there are three fundamental appeal strategies known as ethos, pathos, and logos. Ethos refers to the credibility or ethical appeal which involves persuasion by the character involved. In the given statement, this approach would be used if the student emphasized their history of good grades to establish reliability. Pathos is an appeal to the audience's emotions. In the scenario described by the student, pathos would be applied if the student's potential failure evoked emotional responses such as sympathy. Logos refers to logical appeal, using reason and facts to persuade. In the student's statement, the claim of potential failure despite a history of straight A's does not provide a rational explanation or evidence for the anticipated failure, thus lacking in the logos department.