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': 'Mycobacterium TB can be differentiated from other mycobacterium by- \nSelect and explain. \nA. Production of niacin, B. arylsulphate test, C. Coagulase test, D. Bile solubility test', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Production of niacin", 'role': 'assistant'}]