This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
[{'content': 'WHO definition of health does not include ? \nSelect and explain. \nA. Physical health, B. Mental health, C. Environmental health, D. Social health', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. is \'c\' i.e., Environmental health According to WHO, "Health is a state of complete physical, mental and social well being and not merely an absence of disease or infirmity." In recent years, this statement has been amplified to include "the ability to lead a socially and economically productive life."', 'role': 'assistant'}]