What is the best way to punctuate the bolded portion of the sentence?

the new york timescalled vonnegut a “laughing prophet of doom

“laughing prophet of doom.
“laughing prophet of doom”
“laughing prophet of doom.”
“laughing prophet of doom

Compare and contrast the merits and drawbacks of at least two of the scholarly approaches to literature described in this unit. be sure to mention at least one advantage that each approach has over the other. use one of the readings from this unit in your comparison. your answer should be at least 250 words.