Weeping willow trees, which are native to northern China, are beautiful and ... Their width can equal their height, so they can wind up as very large trees. ... With the proper cultivation, they can grow into strong, hardy, beautiful trees. ... and permanence when a prophet in the Book of Ezekiel plants a seed "like a willow
The correct answer is C. With the repetition of "nevermore".
With each repetition, the amount of melancholy increases because nevermore at first seems nonsensical and then his questions all lead towards a sensible and rather depressing answer "nevermore"