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': 'For anesthesiology mild Systemic disease Included in ASA grade \nSelect and explain. \nA. 1, B. 3, C. 4, D. 2', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]