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: Surgery
[{'content': 'Preoperative shaving is idealy done at ? \nSelect and explain. \nA. Evening before, B. Morning of operation, C. Just before operation, D. At operation table', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Just before operation", 'role': 'assistant'}]