Your body is able to produce its own vitamin D3 when your skin is exposed to the sun's ultraviolet rays, specifically ultraviolet (UVB) radiation. When UVB rays hit your skin, a chemical reaction happens: Your body begins the process of converting a prohormone in the skin into vitamin D.
Exposure to UV light stimulates Vitamin D to be produced
Exposure to UV light stimulates the skin to produce Vitamin D, specifically in its D3 form known as cholecalciferol. This process involves a series of conversions that occur first in the skin, followed by the liver and kidneys. Thus, the correct answer to the question is option d: D.
;