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: Pharmacology
[{'content': 'In raised ICT, anaesthetic agent of choice is : \nSelect and explain. \nA. Enflurane, B. Isoflurane, C. Ketamine, D. Ether', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]