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 scrofulaceum which cause scrofula, belongs to which groups of atypical mycobacteria - \nSelect and explain. \nA. Photochromogens, B. Scotochromogens, C. Non-photochromogens, D. Rapid growers', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Scotochromogens", 'role': 'assistant'}]