Which sentence from the tell tale heart uses the correct format for a parenthetical citation

In what critical way is the protagonist dynamic in "there's a man in the habit of hitting me on the head with an umbrella"?

Select the sentence using an appositive to further explain the subject. the water is cold, but the sand is warm. mr. miller, the dean of the school, makes you feel very humble running in the relay, bob tripped and fell.

What is included in the body of a business letter ?