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': 'Which of the following parameters shifts O2 dissociation curve to Right \nSelect and explain. \nA. Co poisoning, B. Anaenic hypoxia, C. Anaemia, D. Increase in fetal Hb', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Co2 poisoning, Anaemic hypoxia and increase in fetal Hb shifts the curve to left.', 'role': 'assistant'}]