It shows the difference between them while also bringing them together. It's a way for the reader to compare and contrast them as they both come together in the end. It makes a reader find the similarities between the two and what they want, though the way the got there is completely different and circumstantial, coming from the different eras.
Pathos isn’t using reputation or exaggeration. Therefore, C and D are both eliminated. Pathos is using emotion, mostly sadness, to make people feel sympathy. The answer is B: the appeal to emotions.