Answer: Option A.
Explanation:
cellular respiration is the process in which glucose is converted into Adenosine Triphosphate (ATP), a form of energy.
Homeostasis is the process that helps in maintaining the physiological and chemical processes inside the body.
Cellular respiration supports homeostasis to maintain the stability of body. ATP is produced during cellular respiration that provides energy to perform several body functions such as muscle contraction and nerve conduction which are responsible for the maintenance of homeostasis.
Hence, the correct option is A.