A Light Skinned Person May Appear Pink When They Become

A light skinned person may appear pink when they become over heated. The best explanation for this is ________.

A) blood flow has increased to the sweat glands in order to increased their metabolic activity
B) the melanocytes are responding to the heat of the sun and change the appearance of the skin with increased production
C) the heart is pumping faster because the person was probably exercising
D) the blood vessels of the dermis have undergone vasodilation, bringing a greater volume of blood to the skin