Answer:
A. By supporting his argument with an account of personal experience so we will trust him.
Explanation:
Ethos is a rhetorical device in which an author appeals to his credibility in order to convince the audience of supporting a particular position. This is an ethical appeal that is meant to present the author as an authority in the subject. This is one of the devices that Thoreau employs in "Resistance to Civil Government." In this text, Thoreau argues that people should disobey government when it goes against their moral principles. He supports this by providing his own personal account of civil disobedience.
