A passage argues that urban green spaces reduce stress by providing sensory relief from city noise and visual clutter. The author then spends three paragraphs detailing the specific neurological mechanisms by which natural environments lower cortisol levels. What is the relationship between these paragraphs and the passage's central idea?
A) They introduce a contrasting argument that ultimately undermines the main claim.
B) They provide supporting evidence that elaborates on the mechanism behind the central claim.
C) They shift the central idea from psychological benefit to biological determinism.
D) They function as a digression unrelated to the author's primary concern.
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A
They introduce a contrasting argument that ultimately undermines the main claim.
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B
They provide supporting evidence that elaborates on the mechanism behind the central claim.
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C
They shift the central idea from psychological benefit to biological determinism.
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D
They function as a digression unrelated to the author's primary concern.