Tossing their heads in sprightly dance is personification (giving a nonhuman thing human-like traits) so this is your answer. None of the others options are in the poem anyways even though all the other options are figurative language as well.
Answer: So basically Academic writing is a clear, concise, focussed, structured and backed up writing by evidence. It has a formal tone and style, but it is not complex and does not require the use of long sentences and complicated vocabulary. Some features are complexity, formality, precision, objectivity, explicitness, accuracy, hedging, responsibility, organization and planning. Hope this helps.
Its b but this has to be 20 wordsssssssssssssssssssssssssss
The answer would a , add period