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: Medicine
[{'content': 'In hyperosmolar hyperglycemic non ketotic coma the blood glucose level is around - \nSelect and explain. \nA. 55 mmol/l, B. 20 mmol/l, C. 80 mmol/l, D. 5 mmol/l', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]