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: Anaesthesia
[{'content': 'American Society of Anaesthesiology (ASA) classification is done for: March 2013 (a, e, f) \nSelect and explain. \nA. Pain, B. Fitness/ status of patient, C. Lung disease, D. All of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B i.e. Fitness/ status of the patient', 'role': 'assistant'}]