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': "The best method of measuring blood glucose level in the long term would be \nSelect and explain. \nA. Glucose tolerance test, B. Benedict's test, C. Glycosylated-Hb method, D. Stressed glucose tolerance test", 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]