12. The key to description is A. showing only the steps you consider important.
B. considering only what you think the reader already knows.
C. giving the reader enough detail to form a picture in his or her mind.
D. telling the reader how you would do something.

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.  

answer: yes, ive read this book! now whats the problem ?

explanation: