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': 'James Lind is related to discovery of \nSelect and explain. \nA. Prevention of scurvy, B. Pathogenesis of scurvy, C. Cause of scurvy, D. All of the above', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ref:Park's Textbook of Preventive and Social Medicine 25th Ed", 'role': 'assistant'}]