Hey Haewon!

You are absolutely right! The two paragraphs should be one. The "second paragraph" (Dozens of...violence) continues the discussion of the previous sentence. The correct answer is (C), but more importantly, the two paragraphs should be combined into one since it is a "logical introduction" to the paragraph. Great catch. Thank you so much letting me know. I'll go ahead and make the necessary changes. =)

You got this!