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A light skinned person may appear pink when they become over heated. the best explanation for this is ________. the heart is pumping faster because the person was probably exercising blood flow has increased to the sweat glands in order to increased their metabolic activity the melanocytes are responding to the heat of the sun and change the appearance of the skin with increased production the blood vessels of the dermis have undergone vasodilation, bringing a greater volume of blood to the skin

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danilosanmartin
The correct answer is "the blood vessels of the dermis have undergone vasodilation, bringing a greater volume of blood to the skin"

This is because heat signals the temperature regulating center of the hypothalamus then the hypothalamus will respond to that signal by activating the sympathetic nervous system causing the vasodilation of the cutaneous blood vessels leading to more blood flow essentially cooling the skin by letting more heat to the outside environment.