How does the situational irony of this excerpt affect "The Tell-Tale Heart"?

The narrator's frantic insistence that he is sane only helps to convince readers that he is not.

The narrator's firm insistence that he is innocent of the old man's murder only serves to convince readers that he is guilty.

The narrator's mention of his calm and health only serve to highlight the serious injuries he's suffered.

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.