Answer:
B - Ethos is about establishing your authority to speak on the subject, logos is your logical argument for your point and pathos is your attempt to sway an audience emotionally.
Explanation:
Ethos (sometimes called an appeal to ethics), then, is used as a means of convincing an audience via the authority or credibility of the persuader, be it a notable or experienced figure in the field or even a popular celebrity.
Pathos (appeal to emotion) is a way of convincing an audience of an argument by creating an emotional response to an impassioned plea or a convincing story.
Logos (appeal to logic) is a way of persuading an audience with reason, using facts and figures.