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': 'All are rapid growers except - \nSelect and explain. \nA. M.fouitum, B. M.chelonae, C. M.avium intracellulare, D. M. Smegmatis', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., M.avium intracellulare", 'role': 'assistant'}]