This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous General Anesthesia, Subject name: Anaesthesia
[{'content': 'Dose of thiopentone is? \nSelect and explain. \nA. 2.50%, B. 5%, C. 2%, D. 3%', 'role': 'user'}, {'content': 'Answer: A \nExplanation: ANSWER: (A) 2.5%REF: Miller 6th ed p. 345Dose of thiopentone is 2.5%', 'role': 'assistant'}]