Writing "Essentials" Quiz

What "essential" is this an example of: “There didn't look like there was anything in the park except dog crap and globs of spit and cigar butts from old men, and the benches all looked like they'd be wet if you sat down on them” -Holden in Catcher in the Rye (NOTE: TWO ANSWERS MAY BE CORRECT, IDENTIFY ALL FOR CREDIT)

What "essential" is this an example of: "He gave a sudden intimation that he was content to be alone—he stretched out his arms toward the dark water in a curious way, and far as I was from him I could have sworn he was trembling. Involuntarily I glanced seaward—and distinguished nothing except a single green light, minute and far away, that might have been the end of a dock." -Nick Carraway from The Great Gatsby (NOTE: TWO ANSWERS MAY BE CORRECT, IDENTIFY ALL FOR CREDIT)

What "essential" is this an example of: “It rained on his lousy tombstone, and it rained on the grass on his stomach. It rained all over the place.” -Example from Holden in Catcher in the Rye (NOTE: TWO ANSWERS MAY BE CORRECT, IDENTIFY ALL FOR CREDIT)

What "essential" is this an example of: "We need to be really bothered once and awhile. How long is it since you were really bothered? About something important, about something real?” -Montag in Fahrenheit 451 (NOTE: TWO ANSWERS MAY BE CORRECT, IDENTIFY ALL FOR CREDIT)