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The one effect of Walt Whiteman's long and uneven lines is, they create a conversational style.
What is conversational style?
Conversational style of writing is a informal way of writing, its more of a private conversational style.
Because, conversational style of writing simple words to express, tells a story and is written in a speech style. Walt Whiteman style of writing is more of conversational style, he allows his readers to experience different part of his poems. He through his writing goes beyond the imagination to connect with the readers. He kind of build a block where he divides the lines to have a conversational style of poem.
Hence the correct option is, C. they create a conversational style.
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