Final answer:
When the skin is exposed to UV rays, specifically UV-B radiation, it prompts the production of Vitamin D, which is vital for bone health. The option (A) is correct.
Step-by-step explanation:
Ultraviolet (UV) rays applied to the skin during a treatment prompt the skin to produce Vitamin D. This occurs through exposure to UV-B radiation, generally from sunlight.
The human skin naturally synthesizes Vitamin D when exposed to UV-B rays, which is essential for maintaining healthy bones and preventing disorders such as rickets and osteoporosis. While melanin is produced as a response to protect the skin from UV damage and gives the skin its color, it is the UV-B rays specifically that stimulate Vitamin D production in the skin's epidermis. Therefore, option (A) is correct.
This question is not complete, Here I am attaching the complete question:
Ultraviolet (UV) rays applied to the skin during a treatment prompt the skin to produce:
A. Melatonin
B. Collagen
C. Vitamin C
D. Hemoglobin