This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteriology, Subject name: Anatomy
[{'content': '2.Shangai fever is a mild febrile illness caused by which of the following organisms? \nSelect and explain. \nA. Pseudomonas, B. Burkholderia, C. Acinetobacter, D. Stenotrophomonas', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Shangaiever fever is a typhoid resembling fever caused by psedomonas aeruginosa', 'role': 'assistant'}]