The black cat" is presented as a series of flashbacks. the story begins in the present, but quickly moves back in time. how does the author's use of flashbacks to tell the narrator's story create tension

The author uses flash backs and creates tension because he knows death is approaching him.The more he speaks about the past , the closer he comes to the end of his days.Because he knows he is about to die, he wants to to go through every memory that put him in that position.Every single action leads to his doom.That is how this  condemned narrator creates tension

ok if it wasn't the hans one it was probably c or he thought the mountain was collapsing on them.