This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Arterial Disorders, Subject name: Surgery
[{'content': 'Before surgery what is not done - \nSelect and explain. \nA. Shaving, B. Draping, C. Control of blood glucose, D. Anticoagulation', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Anti coagulation", 'role': 'assistant'}]