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
HbA1c control for how much time 
Select and explain. 
A. 2 -3 weeks, B. 3 - 6 weeks, C. 6 - 8 weeks, D. 14 - 18 weeks
C: 6 - 8 weeks
Answer: C: 6 - 8 weeks 
Explanation: Answer- C. 6 - 8 weeksThe half-life of an erythrocyte is typically 60 days, the level of glycated hemoglobin (HbA1c) reflects the mean blood glucose concentration over the preceding 6-8 weeks.