Question

how does the author use the narrators perspective to create irony in this excerpt?
the narrators detailed and admiring descriptions of gopher prairie reveal the irony of carols negative emotions.
the narrators description of carols emotional reactions reveals the irony of her negative response to sam clarks friendliness.
the narrators description of carols angry thoughts reveals the irony of her marriage to kennicott, who only says positive things.
the narrators detailed and admiring descriptions of kennicotts friends reveal the irony of the brides homecoming.

Explanation:

The narrator's detailed and admiring descriptions of Kennicott's friends contrast with the bride's (Carol's) experience of her homecoming. This contrast creates irony as the positive descriptions of the friends (through the narrator's perspective) are at odds with the reality (or at least the implication) of the bride's homecoming not being as positive as the descriptions might suggest.

Answer:

The narrator's detailed and admiring descriptions of Kennicott's friends reveal the irony of the bride's homecoming.