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': 'The instrument below is used for \nSelect and explain. \nA. Endoscopic ultrasound probe, B. Oesophageal temperature probe, C. Enterography, D. None', 'role': 'user'}, {'content': 'Answer: B \nExplanation: This is used for monitoring temperature, core temperature monitoring.', 'role': 'assistant'}]