A client runs 5 miles a day because it improves mood and energy level. Which of the following best describes this example?

A. Health maintenance: This involves keeping a current state of health and managing chronic conditions rather than actively enhancing well-being. B. Illness prevention: Focuses on reducing risk or exposure to specific diseases, such as immunizations or screenings. C. Health promotion: This is about adopting behaviors that improve overall well-being - like exercising to boost mood and energy. D. Health protection: Involves actions to protect individuals from disease or injury, like using PPE or immunization.