In divergent, what is the "pit" supposed to represent?

Italked more quickly—more vehemently; but the noise steadily increased. i arose and argued about trifles, in a high key and with violent gesticulations; but the noise steadily increased. why would they not be gone? i paced the floor to and fro with heavy strides, as if excited to fury by the observations of the men? —but the noise steadily increased.what is the effect of parallelism in this excerpt? it emphasizes the narrator’s paranoia. it emphasizes the narrator’s anger. it emphasizes the narrator’s grief. it emphasizes the narrator’s confusion.

Because genetics is now progressing so rapidly, it is revolutionizing medical research. identify the subordinate clause in the sentence. a) is now progressing b) is now progressing so rapidly c) it is revolutionizing medical research d)

Dogs make wonderful pets because they keep us happy and healthy, the topic sentence is "dogs make wonderful pets". can someone me write a unrelated sentences to the topic and can be eliminated. need asap