(10) but the raven, sitting lonely on the placid bust, spoke only that one word, as if his soul in that one word he did outpour. nothing further then he uttered—not a feather then he fluttered— till i scarcely more than muttered “other friends have flown before— on the morrow he will leave me, as my hopes have flown before.” then the bird said “nevermore.” what is the effect of the poetic structure used in stanza 10 of the poem? a-the rhythm in the third and fourth lines creates a restless mood. b-the internal rhyme in the third line extends to the next line, creating a bewildered tone. c-the repetition of the phrase "that one word" in the second line slows the pace. d-the repetition of the phrasing in the fourth and fifth lines creates an enraged mood.