How does Poe create suspense in this stanza?
by allowing the speaker to retreat from all danger
by revealing that the tapping is caused by the wind
by having the speaker explore the mysterious noise

Edgar Allan Poe create suspense in this stanza by not revealing the source of the noise, because no one is standing at the door when the speaker opened the door. The correct option is C. In the excerpt given above, the speaker was sleeping in his room when he heard someone knocking his door. Before he open the door, he was explain to the knocker while he he did not open the door earlier; when he eventually opened the door, nobody was at the door.

Explanation:

6  then the  lord  said to cain, “why are you angry?   why is your face downcast?   7  if you do what is right, will you not be accepted? but if you do not do what is right, sin is crouching at your door;   it desires to have you, but you must rule over it.”

8  now cain said to his brother abel, “let’s go out to the field.”  while they were in the field, cain attacked his brother abel and killed him.