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': 'School of fish appearance is characteristic of: \nSelect and explain. \nA. Bordetella peussis, B. Yersinia enterocolitica, C. Haemophillus ducreyi, D. Legionella', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is. 'c' i. e., Haemophillus ducreyi", 'role': 'assistant'}]