What is one motivation behind establishing the constitution

The desire to create a national government capable of confronting unforeseen and unforeseeable problems was a central motivation behind the Constitution. The Framers were part of a bold but pragmatic generation. They knew they were creating a nation that would change in important ways over time.

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.