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': 'Motorcyclist fracture among the following is - \nSelect and explain. \nA. Ring facture, B. Sutural separation, C. Comminuted fracture of vault of skull, D. Fracture base of skull into anterior & posterior halves', 'role': 'user'}, {'content': "Answer: D \nExplanation: The synopsis of forensic medicine & toxicology ;Dr k.s narayan reddy ; 28th edition ; pg.no. 151 . At autopsy the base of the skull is seen divided into 2 halves each moving independently of each other like a hinge ,it is called motor cyclist's fracture.", 'role': 'assistant'}]