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: Anaesthesia
[{'content': 'Critical temperature of oxygen is? \nSelect and explain. \nA. 20, B. 118, C. 36.5, D. 400C', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., -118", 'role': 'assistant'}]