Read the first stanza of the poem "The Raven" by Edgar Allan Poe. Once upon a midnight dreary, while I pondered, weak and weary,
Over many a quaint and curious volume of forgotten lore—
While I nodded, nearly napping, suddenly there came a tapping,
As of some one gently rapping, rapping at my chamber door.
“‘Tis some visitor,” I muttered, “tapping at my chamber door—
Only this and nothing more.”

Which line from the stanza best supports the idea that the speaker wasn't expecting anyone to come by?

"As of some one gently rapping, rapping at my chamber door"

"Over many a quaint and curious volume of forgotten lore—"

"While I nodded, nearly napping, suddenly there came a tapping,"

"'Tis some visitor,' I muttered, 'tapping at my chamber door—'"