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': 'Not a grievous hu: \nSelect and explain. \nA. Emasculation, B. Contusion over scalp, C. of bone, D. Hu which endanger life', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Contusion over scalp', 'role': 'assistant'}]