Answer: there is an error in sentence 1.
I am not 100% sure, but I would say that the sentence which best describes the theme of this work is A) People aren't always what they seem.
On July 5, 1852, Douglass gave a speech at an event commemorating the signing of the Declaration of Independence, held at Rochester's Corinthian Hall. It was biting oratory, in which the speaker told his audience, "This Fourth of July is yours, not mine. You may rejoice, I must mourn."