(Into the Wild) As a young adult Christopher found out about an immoral act that Walt McCandless committed when Christopher was a young boy. 1. What was that act?
2. Why did it bother Christopher so much in your opinion?

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.  

every four years the american people choose a new president, and 1988 is one of those years."

your answer is b. tense. hope this .