Answer:
It allows the reader to see the contrast between the dog's sensible thoughts and the man's illogical thoughts.
Explanation:
Since an omniscient narrator has full knowledge of details hidden to other characters in the story, we can guess based on this.
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Reasoning:
"It allows the reader to see the contrast between the dog's sensible thoughts and the man's illogical thoughts." This sentence shows that the reader knows secretive details about the man and dog.
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"It gives the reader access to only the man's thoughts and feelings, which makes the reader realize how overconfident he is." This sentence makes the story non-omniscient by tying down our perspective to the man's P.O.V.
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"It allows the reader to experience the story through the man's view, which allows readers to feel compassion for this character." This sentence makes the story non-omniscient by tying down our perspective to the man's P.O.V.
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"It uses the pronoun "you" to place the reader directly in the story, which adds to the theme of loneliness in nature." This sentence does not relate to the fact the story is omniscient. It is only describing the theme and word choice.
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Conclusion:
Since neither the 3rd, 4th, or 2nd sentences do not explain that we know hidden knowledge, it is the 1st sentence.