The answer would be the last option which is:
protecting the body
excreting wastes
regulating temperatures
generating vitamins
This includes the skin and its extremities acting to shield the body from different sorts of harm, for example, loss of water or scraped area from outside. The framework has numerous parts in homeostasis. All body frameworks work in an interconnected way to keep up the inside conditions fundamental to the capacity of the body, the skin has a vital activity of securing the body and goes about as the body's first line of protection against contamination, temperature change, and different difficulties to homeostasis.
Answer:
I think the answer would be option A.
Explanation:
A healthy diet and daily exercise has its benefits for the body. It´s good to be healthy, but you should not exercise too much because you would be overworking what your body could handle. Having a healthy diet includes protein from all the food groups. You would get protein, calcium, and etc from the food groups.
( I am so sorry if my answer is wrong, but that´s what I would choose :) )
