Wich passage is the best example of the falling action in “the black cat”

"i experienced a sentiment half of horror half of remorse, for the crime of which i had been guilty." so answer b, because, it's showing the reaction/downfall of someone/thing after a major even

The correct answer is option D.

D. But tomorrow I die, and today I would unburthen my soul.

- Because the protagonist  prior he murder his wife, he had drinking problems and he did not have a felling of guilty or a reflection about the murder. After the murder he had the drinking problems heavily.