Dr. Heidegger’s Experiment Which BEST indicates that this passage is part of the exposition of the plot? A) the dialogue among the characters B) the use of the third person point of view C) Dr. Heidegger's full explanation of his experiment D) descriptions of the characters and of Heidegger's study

Explain the effect of the rhetorical questions for the below paragraph. "i pinched myself: was i still alive? was i awake? how was it possible that men, women, and children were being burned and that the world kept silent? no. all this could not be real. a nightmare soon i would wake up with a start, my heart pounding, and find that i was back in the room of my childhood, with my "