The body's energy supply is met by the metabolism of glucose in cells using oxygen. The problem with Lucille's respiratory and circulatory system can make it difficult for her to take part in soccer game because the needed energy would not be available for her to participate in the game.
The ability of an organism to maintain its internal stability against external environmental changes thereby developing the constant internal environment within the organism is known as Homeostasis.
Homeostasis is deeply produced in warm-blooded animals to control body temperature, fluid balance, blood pH, and oxygen pressure, concentration of chemicals,etc.
During homeostasis process entire body system work together to maintain the balance. If not controlled or if disrupted the process will result in disease or disorder.
You should never compare yourselves to others but in a situation of actually doing something then A, but if it is something that you are trying to get through then C.