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
Oxygen dissociation curve shift to right in: 
Select and explain. 
A. Hypothermia, B. Hypercarbia, C. Fetal Hb, D. All
B: Hypercarbia
Answer: B: Hypercarbia 
Explanation: B i.e. Hypercarbia