The correct answer is “it’s” because it combines it is
Stanza 6: The narrator returns to his chamber and soon hears a louder tapping, this time at his window. He decides to explore the noise, telling himself it is merely the wind. Analysis: Like the narrator, you're probably wondering when something's going to happen. The narrator is in denial.
Our answer is B hope that helps!
Sharpness or keenness of thought, vision, or hearing.