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: Surgery
[{'content': 'Hess hunt scale is used in: \nSelect and explain. \nA. Extradural hemorrhage, B. Anterior cranial fracture, C. Posterior cranial fracture, D. Subarachnoid hemorrhage', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Hess hunt scale is used to grade the severity of subarachnoid hemorrhage.', 'role': 'assistant'}]