Which of the following choices shows a correct use of hyphens and dashes? A. Marguerite-never one to show caution-leapt into the blue—green water.
B. Last Sunday-look out! That's the shallow—end!
C. There is—one person-my sister-who can sort out the mixed-up papers.
D. Jones is a well-known poet—not that I like his work that much.

D. Jones is a well-known poet—not that I like his work that much.

the sentence that avoid faulty coordination is:

culture, which is well represented in philadelphia, plays a major role including theatre, music, and the visual arts.  

faulty coordination occurs when the writer gives equal importance two different ideas (clauses) which in fact are not equivalent. in order to correct a misplaced clause or idea, the writer can place less important or emphatic ideas in a relative clause as in the previous sentence.