What does "lost the use of reason" mean?

Which three sentences in this excerpt from arthur conan doyle's "the contest" suggest that the author's tone is mocking?

For frederick douglass’s address, “what to the slave is the fourth of july? ” (1852)1) does the speaker use fallacious reasoning or logical fallacies? use evidence from the text to support your answers. 2) how effective is the speaker’s response to counterclaims or alternate claims? use evidence from the text to support your answer

Which describes the effect the use of figurative language has on the tone of this excerpt? select all that apply