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
An increase in the concentration of 2,3 DPG may be seen in all of the following, except 
Select and explain. 
A. Anemia, B. Hypoxia, C. Inosine, D. Hypoxanthine
D: Hypoxanthine
Answer: D: Hypoxanthine 
Explanation: None