What are the interlopers (the intruders, the meddlers) in Saki’s story “The Interlopers” A. Ulrich & Georg men were the interlopers.
B. First Georg is the interloper, then nature (the trees, the wolves) is the interloper.
C. The townspeople who know the two men are interlopers.

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.  

second one- because has facts and not opinion