In "chicago" , Sandburg use rhyming and rhythm in his verbs. The usage of this verbs make "chicago" is really interesting to read and the readers can't help but to feel some sort of excitement by reading it
It is verb type sentence ==> is your answer.
I hope this helps ≧ω≦
Sorry if wrong :-(
I don't know if I'm completely correct, so please don't get mad at me, but I do think that the answer is B. If you think about it, modern poetry has far fewer rules than it used to. Free verse has become a very popular form of poetry, and that is my reasoning. I hope this is helpful!
