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': 'Dose of which of the following muscle relaxant has to be calculated on the basis of total body weight of an obese person rather than its ideal weight \nSelect and explain. \nA. Atracurium, B. Vecuronium, C. Pancuronium, D. Rocuronium', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. a. Atracurium', 'role': 'assistant'}]