Which of the following best describes the characteristics of acanthosis nigricans?

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Presence of insulinoma, obesity, and skin lighteningInsulin resistance, excessive weight, and darkened skin patchesSpinous layer thickening, insulin resistance, and obesitySpinous layer thickening, insulin resistance, and a lean body type

Explanation

Acanthosis nigricans is typically associated with insulin resistance, obesity, and hyperpigmentation of the skin. It presents as dark, velvety patches commonly found in body folds.