2. which is the best primary source about the fall of the berlin wall?

is the best place to find any information about any time period in our history.

explanation:

"the berlin wall: the fall of the wall on november 9, 1989, as the cold war began to thaw across eastern europe, the spokesman for east berlin's communist party announced a change in his city's relations with the "

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.  

the objective should be switched