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': 'True about Hb dissociation curve is: \nSelect and explain. \nA. Acidosis shifts 02 dissociation curve to right, B. T CO2 shifts the curve to left, C. Hypoxia shifts curve to left, D. All', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Acidosis shifts O2 dissociation curve to right', 'role': 'assistant'}]