What is the effect of the first-person narration in "there's a man in the habit of hitting me on the head with an umbrella"?

`it leads the reader to belive that the narrator is unreliable, and thus, his story cannot be believed.
`it lends a sense of believability to the absurd events, allowing the reader to suspend their disbelief.
`it gives the story a unique perspective, since the narrator is not directly involved in the events of the plot.
`it makes the story much less personal, allowing the reader to view it from an objective distance.

Read the passage below and answer the question that follows. ‘you make me feel uncivilized, daisy,’ i confessed on my second glass of corky but rather impressive claret. ‘can’t you talk about crops or something? ’ i meant nothing in particular by this remark but it was taken up in an unexpected way. ‘civilization’s going to pieces,’ broke out tom violently. ‘i’ve gotten to be a terrible pessimist about things. have you read ‘the rise of the coloured empires’ by this man goddard? ’ ‘why, no,’ i answered, rather surprised by his tone. ‘well, it’s a fine book, and everybody ought to read it. the idea is if we don’t look out the white race will be—will be utterly submerged. it’s all scientific stuff; it’s been proved.’ in this passage, tom’s ideas about race relations come off as uncivilized. what literary device is fitzgerald using here? irony personification metaphor simile