The best way would be A,
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Pickering is the person that treats a flower girl like a duchess.
Whereas Higgins treats a duchess like a flower girl.
I believe the answer would be " And I go darkly-rebel to my work." It effects the poem by trying to explain what that person is feeling when they have to go to work in morning.
Answer:
Uncertain
Explanation:
You can see the narrator not very sure of things. He reminds himself that the smell of dirt was not to be feared, but since he needs to remind himself, we do sense that the narrator does fear the smell. This: "loathed these errands and doubted my ability to discern a peach from a pear in the dim light" is another sentence that shows uncertainty. In the end, some shadow that can't clearly be discerned is more more thing that contributes to the tone.