This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Concept of disease causation, Subject name: Social & Preventive Medicine
[{'content': 'Father of public health is which disease? \nSelect and explain. \nA. Tuberculosis, B. Cholera, C. Malaria, D. Plague', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) CholeraRef: K. Park 23rd ed./5* Father of public Health: John Snow, identified Cholera* Father of modern epidemiology: John Snow* Father of Medicine/first true epidemiologist: Hippocrates.', 'role': 'assistant'}]