Read the excerpt from "the adventure of the mysterious stranger," by washington irving.

when he found i really took an interest in him he threw himself entirely upon my friendship. he clung to me like a drowning man. he would walk with me for hours up and down the place of st. mark—or he would sit until night was far advanced in my apartment.
what does this excerpt reveal about the narrator of the story?
it describes what the narrator knows from his past.
it describes what the narrator experiences in the story.
it provides an inference drawn by the narrator.
it provides a criticism voiced by the narrator.