Final answer:
The audience appeal most prominently used in the excerpt is 'pathos,' with some elements of 'ethos' indicated by the appeal to the audience's intelligence and sympathies. The purpose of the writer seems to be to either align with or challenge conventional expectations to engage the audience effectively.
Step-by-step explanation:
The type of audience appeal most clearly used in the excerpt is 'pathos,' which appeals to the readers' emotions and sympathies. Another possible appeal is 'ethos,' which focuses on the credibility of the writer or speaker and appeals to readers' sense of trust. The final appeal, 'logos,' which is an appeal to logic and reason, might be present if the text provides clear examples and factual evidence to support its thesis. From the provided information, it is evident that the writer aims to engage the audience’s intelligence and sympathies, indicating the use of both ethos and pathos. However, without specific text examples, it is difficult to determine whether logos is also used effectively.
The writer is also described as attempting to meet or challenge conventional expectations in rhetorically effective ways. This could mean that the writer is using traditional forms of persuasion or perhaps subverting them in order to make a more impactful argument.