It rhymes and repeats but I would say its more of a song, but don't get me wrong it does have the characteristics of a poem.
Most probably it's option A, because it sets the environment scary, and what all needed to make the story scary is environment & dialogues
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Based on the given sentence above, we can fix this fused sentence by applying the correct punctuation mark. Since the sentence is composed of two independent clauses, we should put a semicolon before the coordinating conjunction and a comma after it. So the sentence would be: Several poets have taken inspiration from Walt Whitman's style; therefore, <span>he's known in literary circles across the world. </span>