The best option which represents the main idea of the poem is B) <span>Seasons and Ferris wheels are like Earth's journey around the sun.</span>
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Blanched or airdried potatoes
Given that 'blunt' means 'not smart' and that 'mettle' means 'wit; intelligence', I believe that the statement that best paraphrases "What a blunt fellow is this grown to be! He was quick mettle when he went to school" is "This man, who was smart in school, has grown up to be unintelligent".