I think it's most likely D because when I googled the definition it said something about gas so yeah
Answer:
Funny because I just learned about this
Homeostasis is not a collection of organs, but a synthesis of bodily functions that collectively keeps the entire body stable. In order to keep homeostasis at optimum it must have access to an adequate supply of energy. Our body’s energy comes from the sun.
Explanation:
Medulla Oblongata
The lower part of the brain stem ( the part connected to the spinal cord) controls most of the functions you dont think about.<span />
