Answer:
The character that relies on the rhetorical appeal of ethos to make an argument is Creon
Explanation:
Rhetoric is the art of persuasion, ethos is how the rhetoric is perceived by the audience as credible or not, the use of ethos is called an "ethical appeal." the audience asks themselves how much does this person know about the topic? in order to decide how credible the argument is.
Creon uses ethos when he arguments that he is older and wiser than his son.