Answer:
B). An appeal to authority that establishes credibility.
Explanation:
An appeal is crucial for a speaker or author while communicating with the audience as it determines how the audience would reply to a particular content proposed. Different types of appeal may include logical, emotional, or ethical(ethos, logos, and pathos) in Aristotle's terms which he called 'three modes of persuasion' that help to convince that audience to believe in the claim or argument proposed.
As per the question, an ethical appeal is described as it exemplifies an 'appeal to authority that establishes credibility' that aims to set up the reliability of the author by invoking authority. Thus, option B is the correct answer.
