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: Microbiology
[{'content': 'The tuberculous bacilli was discovered by- \nSelect and explain. \nA. Robe Koch, B. Edward Jenner, C. Louis pateur, D. Jonas Salk', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Robe koch", 'role': 'assistant'}]