Answer:
The quotation from The Black Cat that best supports the inference that the narrator feels he deserves to be punished for his cruelty is the third one: “...I knew that in so doing I was committing a sin…even beyond the reach of the infinite mercy of the Most Merciful and Most Terrible God.”
Step-by-step explanation:
By reading these lines we can understand how the speaker in conscious about the wrong he has done. He knew what he was doing and knew that was wrong and did it anyways. He knew it was a sin, and a big one. So big that it was "beyond the reach of the infinite mercy of the Most Merciful and Most Terrible God". This means that he knew he deserved a punishment from God that, even with His infinite mercy, wouldn't be able to forgive what he had done.