Answer:
B
Explanation:
it has to follow the noun the actual sense
I am assuming that the passage is from Poe's poem 'The Raven' - "rapping at my chamber door". To rap is the old verb, archaic use of the verb to denote the meaning of 'to knock'.
B. and sings a solitary song.
One way alliteration can be found when an author or writer uses words that begin with the same sound or letter such as the 's' sound above.