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': 'Definition of health given by WHO includes which of the following dimensions: \nSelect and explain. \nA. Social, B. Physical, C. Mental, D. Emotional', 'role': 'user'}, {'content': 'Answer: B \nExplanation: WHO  definition of Health: Health is a state of complete physical, mental and social well being, and not merely an absence of disease or infirmity; [recently amplified to include –) and an ability to lead a socially and economically productive life).', 'role': 'assistant'}]