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': '% of thiopentone used in induction \nSelect and explain. \nA. 0.50%, B. 1.50%, C. 2.50%, D. 4.50%', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. 2.5%', 'role': 'assistant'}]