How does the author of condensed milk develop the theme of the story

How do the excerpt and diagram complement one another?

Which statement best explains how the setting affects the meaning of the story? a. the water and wave motif conveys the queasy feeling the narrator has when walking alone at night. b. the firefly light conveys a feeling of nostalgia for long summer evenings spent with family. c. the phrase whispering and murmurs" suggests that the main character has fits of madness. d. the comparison of the street to a graveyard suggests that something is terribly wrong with society.

Based on structural elements what type of expository text does this excerpt from a 1917 congressional address by president woodrow wilson exemplify