change is made in response to arising problems or opportunities. BP's response to an explosion on a drilling platform in the Gulf of Mexico is an example of this kind of change.

harmed

explanation:

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.  

well easy, ask her if she's free or if she would like to go out with you.

explanation:

the flighty purpose never is o'ertook / unless the deed go with it"