Final answer:
Option D: Citing authoritative sources enhances the attribute of trustworthiness in ethos, which refers to the credibility and ethical appeal of the speaker or writer.
Step-by-step explanation:
The attribute of ethos that is enhanced by citing authoritative sources is D.) trustworthiness. Ethos refers to the ethical appeal or the credibility of the writer or speaker. When credible sources are cited, it demonstrates that the person presenting the information has done their research and is providing information that can be verified by respected authorities in the field. This builds the audience's trust in the speaker's competence and their confidence in the speaker's authority on the subject.
By mentioning Desmond's qualifications as an ethnographer, Eliana Evans appeals to ethos, indicating that Desmond is an authority whose opinions are credible. Similarly, when writers include their own credentials and cite reliable sources to support their points, they establish credibility and ensure that readers take them seriously.
Therefore, when authoritative sources are cited, it enhances the trustworthiness aspect of ethos, reassuring the audience that the information presented is accurate and reliable.