This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Anatomy
[{'content': 'Devi,a 28 yr female,has diarrhoea, confusion, high grade fever with bilateral pneumonitis.the diagnosis is \nSelect and explain. \nA. Leginonella, B. Neisseria meningitis, C. Streptococcus pneumoniae, D. H.influenza', 'role': 'user'}, {'content': "Answer: A \nExplanation: Pneumonia in association with clinical clues in the form of high grade fever, confusion, and diarrhoea suggests a diagnosis of legionnaire's pneumonia Ref Harrison 19th edition pg 1016", 'role': 'assistant'}]