Biology

The correct answer is: A.The process of maintaining a stable internal environment

Explanation:

Homeostasis refers to the process by which living organisms maintain a relatively stable internal environment despite changes in external conditions. This involves regulating variables such as body temperature, pH, water balance, and ion concentrations within narrow ranges that are optimal for the organism's survival and function.

The other options are related concepts but do not fully capture the definition of homeostasis:

B.The process of maintaining a stable environ...