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': 'A intravenous anesthetic agent that is associated with hemodynamic stability, maintenence of CPP with post operative nausea, vomiting and myoclonus \nSelect and explain. \nA. Ketamine, B. Etomidate, C. Propofol, D. Opioids.', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Etomidate', 'role': 'assistant'}]