This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pre Anesthetic Evaluation, Subject name: Anaesthesia
[{'content': 'What is normal range of glycosylated haemoglobin (HbA1c) for adequate glycaemic control in diabetic patient- \nSelect and explain. \nA. 6% to 8 %, B. 8 % to 10 %, C. 4 % to 6 %, D. 10 % to 12 %', 'role': 'user'}, {'content': 'Answer: A \nExplanation: normal Range in glycosylated haemoglobin 7% to 9 % for < 5 yrs 6 % to 8 % for > 5 yrs', 'role': 'assistant'}]