This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Anatomy
[{'content': 'Awareness during anaesthesia can be assessed by \nSelect and explain. \nA. a) ETCO2, B. b) BIS, C. c) AERIAL B.P, D. d) NEUROMASCULAR MONITOR', 'role': 'user'}, {'content': 'Answer: B \nExplanation: .', 'role': 'assistant'}]