Answer: The right answer is the C) The first excerpt makes a logical appeal, while the second excerpt makes an emotional appeal.
Explanation: Just to elaborate a little on the answer, it can be added that in the first excerpt the author is using a very forceful piece of evidence - a passage from the Declaration of Independence - to support his claim and convince his audience to do the same. However, in the second excerpt he is trying to get an emotional reaction from his readers by addressing them very passionately, boldly and persuasively. He is willing to reject the Declaration of Independence and to burn it, and he goes as far as to refer to slave owners as beasts or animals - those "other men" that "choose to go upon all fours." Furthermore, he is also willing to accuse "this nation" (and those are many people) of falsifying God's principles if they denounce him for following His example, and that must have been a very grave accusation at that time when he penned this terrific speech (1854).