for these questions, you will consider how the passage might be revised to improve the expression of ideas or to correct the errors in sentence structure, usage, or punctuation. some questions will direct you to an underlined portion of the passage or a location in the passage. others will ask you to think about the passage as a whole. many questions include a "no change" option. choose that option if you think the best choice is to leave the relevant portion of the passage as it is.

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.  

ugly things like bugs or something?