This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Concept of health and disease, Subject name: Social & Preventive Medicine
[{'content': 'Human diseases are due to bad clouds was a pa of which theory? \nSelect and explain. \nA. Supernatural causes, B. "Miasma" theory, C. Germ theory, D. Epidemiological triad', 'role': 'user'}, {'content': 'Answer: B \nExplanation: "Miasma" theory which postulated that human diseases are due to bad clouds which are more dense at lower altitudes and hence diseases are more common among people who live nearer to the eah or sea level Ref: Textbook on Public Health and Community Medicine pg: 17', 'role': 'assistant'}]