Final answer:
Ethos is an appeal to credibility, based on the author's or speaker's character, knowledge, and expertise.
Step-by-step explanation:
Ethos is an appeal to credibility, which is a persuasive technique used to establish the author or speaker as trustworthy and reliable. It is based on the audience's perception of the person's character, knowledge, and expertise. In persuasive writing or speeches, the use of ethos helps to enhance the author's or speaker's persuasive power and convince the audience of their authority on the subject matter.
Learn more about Ethos and persuasion in English