Answer:
C. They give the sense that nature has taken over a once-urban area.
Step-by-step explanation:
The passage from the tale "By the Waters of Babylon" that you are referring to in the question, shows the moment when the son of a priest finds the place of the gods. That place was an urban area that was destroyed by a fire, with the passage of the years the nature was dominating the place that was empty due to the fire. In this way, the details "stone or metal," "many pigeons," "towers," and "wild cats that roam the god-roads" help the reader to envision the once-urban-dominated place of nature.