It can encourage a character's behavior towards a career and elevate performance of the characters.
Sorry if this sounds weird. I'm only in 7th grade.
Answer:
Nick views Gatsby as a deeply flawed man, dishonest and vulgar, whose extraordinary optimism and power to transform his dreams into reality make him “great” nonetheless.
b) because the author has them talking as if they were from a specific era. they talk as if they are from the great depression ,which they are.