What does the term refrain refer to in a song or poem

In living to tell the tale, what does the following passage mainly reveal about the narrator (paragraph 2)? “there was not a single door, crack in the wall, a human trace that did not find a supernatural resonance in me.” : a) the narrator associates memories to specific objects that he sees. b) the narrator realizes the buildings around him should be demolished. c) the narrator feels as though he wants to connect to the people of the town. d) the narrator is unsure why he feels frightened while walking with his mother.