When someone turns to an audience with the intention of convincing them into something, he can use ethos, giving the facts about expertise, pedigree, longevity, credibility. When he wants to achieve the effect of persuasion appealing to the emotions of audition, causing them pity or anger, he uses the pathos. When appealing to the audience using logic, reason, fact supported by numbers, real statistics, he uses logos.
The answer is: C).
