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': "C. diphtheriae is also called as - \nSelect and explain. \nA. Koch's bacillus, B. Roux bacillus, C. Klebs-Löffler bacillus, D. Yersin bacillus", 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]