PLEASE HELP WILL GIVE BRAINLIEST -

Read this excerpt from "The Black Cat" by Edgar Allan Poe.
The fury of a demon instantly possessed me. I knew myself no longer. My original soul seemed, at once, to take its flight from my body and a more fiendish malevolence, gin-nurtured, thrilled every fibre of my frame.
How does the first-person point of view affect the meaning of the text?
a Readers gain insight into the narrator's belief that his actions were rational and justified. b Readers get an inside perspective on why the narrator feels he can treat the cat as he wishes. c Readers learn the narrator's own analysis and explanation for his behavior. d Readers learn about the narrator's behavior from trustworthy outside observer of it.