This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Human identification, Subject name: Forensic Medicine
[{'content': "Hyl's law is used to determine:- \nSelect and explain. \nA. Ageing of skull, B. Sexing of sternum, C. Ageing of sternum, D. Sexing of skull", 'role': 'user'}, {'content': "Answer: B \nExplanation: Hyl's law: To detemine the sex of the sternum In males, the body is longer than twice the length of manubrium. In females, the body is shoer than twice the length of manubrium.", 'role': 'assistant'}]