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: Radiology
[{'content': 'For chest X–ray best view is – \nSelect and explain. \nA. P.A. view, B. A.P. view, C. Lateral view, D. None', 'role': 'user'}, {'content': 'Answer: A \nExplanation: "The best view of the chest is the postero-anterior view with the patient standing and lung fully expanded".', 'role': 'assistant'}]