Answer:
What details are unclear. You want to find the answers within the text and realize your confusion.
Answer:
Climax: The narrator kills the old man.
Exposition: the narrator and the old man are introduced.
Falling action: The narrator shows the policeman into the old man's room
Resolution: The narrator confesses to his guilt and tells the police where to find the body.
Rising action: The narrator goes into the old man's room every night for seven days with the intention of killing him.
Most powerful because if you just sound them out none of the other ones make sense