This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: DNB 2018, Subject name: Physiology
All of the following are responsible for Right shifting of O2 saturation curve; except: 
Select and explain. 
A. Hypoxia, B. Hypocapnia, C. Increase temp, D. Increased 2,3 DPG
B: Hypocapnia
Answer: B: Hypocapnia 
Explanation: 4 factors causing Right shift: 3. Increase in CO2 4. Increase in 2, 3 DPG - Hypoxia induces increase formation of 2, 3 DPG - right shift 2, 3 DPG is the product of Rappo Luebbering shunt in RBC 2, 3 DPG bind with Hb and dissociates O2