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': 'Right shift of oxygen dissociation curve is caused by? \nSelect and explain. \nA. Hypothermia, B. Hypoxia, C. Alkalosis, D. HbF', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is `b' i.e., Hypoxia", 'role': 'assistant'}]