Final answer:
The primary function of the skin is protection, acting as a barrier against environmental threats and preventing water loss. It also plays roles in thermoregulation, sensation, and vitamin D synthesis. option b is answer
Step-by-step explanation:
The primary function of the skin is B. protection. The skin serves multiple essential roles in the body pertaining to homeostasis, but its foremost function is to protect the body from various external threats such as microorganisms and environmental factors. It provides a barrier that prevents water loss, blocks detrimental ultraviolet (UV) light, and limits the penetration of bacteria and other pathogens.
Additionally, the skin is involved in other vital functions like sensation, thermoregulation through the regulation of body temperature, and synthesis of vitamin D in response to exposure to UV light. The integumentary system, which includes the skin, ensures the protection of underlying tissues and organs against physical damage and contributes to overall health with its numerous functions. . option b is answer