a. the long history of the black race.
Answer: A) - Logic
Explanation:
Logical appeal is the strategic use of logic, claims, and evidence to convince an audience of a certain point and typically uses strong evidence (facts, statistics, personal experience, expert authority, interviews) by referencing previous work on the topic.
The answer is "He's sane."
"True - nervous - very, very dreadfully nervous had I been and am; but why will you say that I am mad? The disease had sharpened my senses not destroyed not build them. Above all was the sense of hearing acute. I heard all things in the heaven and the earth I heard many things in hell. How, then, am I mad? Harken! and observe how healthily - how calmly I can tell you the whole story."
Although he is mentally ill, he claims to be sane.