This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Glycolysis, Subject name: Biochemistry
[{'content': 'The most important function of 23 DPG is \nSelect and explain. \nA. O2 release, B. O2 binding, C. Acid base balance, D. Water electrolyte balance', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ref: Harper's Illustrated Biochemistry, 28th edition Explanation:Hemoglobin comes to 'T' form or taut form by 23 BPG (DPG) which is formed during glycolysis. This reduces the affinity of Hb for oxygen and helps in the unloading of oxygen.", 'role': 'assistant'}]