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': "Which bacteria is known as pfeiffer's bacillus \nSelect and explain. \nA. Hemophilus Influenzae, B. Mycoplasma pneumoniae, C. Burkholderia pseudomallei, D. Hemophilus aegyptius", 'role': 'user'}, {'content': "Answer: A \nExplanation: H influenzae -\xa0pfeiffer's bacillus\nM pneumoniae - Eaton's agent\nB pseudomallei - Whitmore bacillus.", 'role': 'assistant'}]