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: Physiology
[{'content': 'An increase in the concentration of 2,3 DPG may be seen in all of the following, except \nSelect and explain. \nA. Anemia, B. Hypoxia, C. Inosine, D. Hypoxanthine', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]