The inclusion of competing opinions serves to strengthen the writer's case. During the writing process, a writer should always keep their audience in mind and recognize that the reader may already have an opposite position.
Ethos operates by lending credence to the author. By establishing credibility with the audience, the speaker or writer establishes trust with the audience.
Ethos could be used to highlight the speaker's or writer's own credentials and reputation or to cite credible writers or sources.
You can create ethos or credibility in two ways: use or develop your own credibility on a subject, or use reliable sources, which increases your credibility as a writer.
Therefore Option C is the reason why it is important to be objective and fair when stating the opposition's viewpoint.
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