This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Mechanical injuries, Subject name: Forensic Medicine
[{'content': 'Not a grievous hu - \nSelect and explain. \nA. Emasculation, B. Contusion over scalp, C. Fracture of bone, D. Hu which endanger life', 'role': 'user'}, {'content': "Answer: B \nExplanation: The synopsis of forensic medicine & toxicology;Dr k.s narayan reddy;28th edition; pg.no. 154&155; All except option 2 comes under grievous hu ,contusion over the scalp is a minor injury and doesn't come under grievous hu.", 'role': 'assistant'}]