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': 'All are false about propofol except \nSelect and explain. \nA. Propofol causes malignant hyperthermia, B. Propofol infusion at rate >4mg/hr causes propofol infusion syndrome, C. Propofol is the best bronchodilator, D. Propofol is cardiovascular stable drug', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Propofol is\xa0bronchodilator, but ketamine is the best among all anaesthetic agents. Propofol has myocardial depressant action.\xa0i.v anaesthetic agents\xa0do not cause malignant hyperthermia.', 'role': 'assistant'}]