This topic examines basic medical care and health promotion law. Basic medical and health services include basic public health services and basic medical services. The state provides basic public health services free of charge. So answer a is wrong. Citizens are the first responsible person for their own health. They should establish and practice the concept of health management responsible for their own health, actively learn health knowledge, improve health literacy and strengthen health management. So answer B is correct. The state establishes a health education system to protect citizens' right to health education and improve citizens' health literacy. So the answer C is correct. Medical and health undertakings should adhere to people-oriented and serve people's health, and the concept of health and health work should be changed from treating diseases to people's health. Therefore, the answer D is correct.