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: Surgery
[{'content': 'In cases of severe head trauma, at what GCS is endotracheal intubation is advised \nSelect and explain. \nA. <=3, B. <=8, C. 10, D. 12', 'role': 'user'}, {'content': 'Answer: B \nExplanation: In cases of severe head trauma, where the patient is unconscious (a Glasgow Coma Score (GCS) of 8 or less), then a definitive airway (such as endotracheal intubation) may be required- Bailey', 'role': 'assistant'}]