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': 'Chocking is constricting device within the barrel at the muzzle end of - \nSelect and explain. \nA. Revolver, B. 303 rifle, C. Shot gun, D. Semiautomatic pistol', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The synopsis of forensic medicine & toxicology ; Dr k.s narayan reddy ; 28th edition ; pg.no 122 The choke bore present in a shot gun ,the distal 7-10 cm of the barrel is narrow . There are some shotguns which have a small poion of their bore near the muzzle end rifled ,which are called "paradox gun" .', 'role': 'assistant'}]