Sentence Correction (SC) | Re: As a participant in the second debate and, more importantly..

IMO B is the answer because
B) Kenneth Bone, arguably the most popular public figure in the 2016 presidential election, has sparked discussion of a number of topics that include
As per OG, relative pronoun clause modifies immediate preceding noun. So that clause modifies topics.

C) Kenneth Bone has arguably become the most popular public figure in the 2016 presidential election, sparking discussion of a number of topics including

discussion of a number of topics including.... including can
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