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': "Johne's bacillus is: \nSelect and explain. \nA. Corynebacterium pseudotuberculosis, B. M. Paratuberculosis, C. H. Acgipticus, D. Micrococcus", 'role': 'user'}, {'content': 'Answer: B \nExplanation: M. Paratuberculosis', 'role': 'assistant'}]