This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: JIPMER 2019, Subject name: Microbiology
[{'content': 'All the following mycobacteria produces pigment except: \nSelect and explain. \nA. M. kansasii, B. M. simiae, C. M. Avium, D. M. scrofulaceum', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Runyon Classification-', 'role': 'assistant'}]