"When reason returned with the morning – when I had slept off the fumes of the night’s debauch – I experienced a sentiment half of horror, half of remorse, for the crime of which I had been guilty; but it was, at best, a feeble and equivocal feeling, and the soul remained untouched."
What can be inferred from this excerpt from Poe’s "The Black Cat"?

The narrator feels refreshed from sleep.
The narrator feels his behavior was rational.
The narrator feels unashamed of his actions.
The narrator feels an urgent need to confess.