The traditional concept of health is "disease-free health", while the modern concept of health is overall health. The World Health Organization believes that health refers to a good state of physical, psychological and social adaptation, not just the absence of disease and infirmity. In recent years, the World Health Organization has also brought moral cultivation and reproductive quality into the health category. People who live in a good environment can keep a happy mood, which is conducive to mental health and physical health. Therefore, in life, learning to get along with others and maintaining good interpersonal relationships can also promote health; Mental health is also an important part of health, which shows that A meets the meaning of the question.
So choose: a.