OB. talking to himself is the correct answer.
"The Raven" is a famous narrative poem by Edgar Allan Poe. The poem begins with the narrator, who is in a melancholic mood, reading a book in an attempt to distract himself from his sadness. As he is reading, he hears a tapping at his chamber door and becomes increasingly agitated. He then opens the door to find nothing there, except the darkness and silence of the night.
The narrator starts talking to himself, trying to reassure himself that it was just the wind, but he soon hears the tapping again. When he opens the door again, he finds a raven perched on a bust of Pallas above his door. The raven enters the room and perches on a bust of Pallas, and the narrator begins to ask it questions.
Therefore, option B, "talking to himself" is the correct answer to the question.