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: Forensic Medicine
[{'content': 'Grevious hu comes under section: \nSelect and explain. \nA. 319, B. 320, C. 324, D. 326', 'role': 'user'}, {'content': 'Answer: B \nExplanation: 320', 'role': 'assistant'}]