This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Anatomy
Reduction of diametervat the muzzle end of a barrel of shotgun is called 
Select and explain. 
A. Rifling, B. Choking, C. Yawing, D. Tembling
B: Choking
Answer: B: Choking 
Explanation: Choking Reduction of diameter at the muzzle end of the barrel of a shotgun is called choking Choking reduces the dispersion of pellets and holds the pellets together for a longer distance Choke- bore means diameter of the barrel is reduced at the muzzle end. Ref: FORENSIC MEDICINE AND TOXICOLOGY Dr PC IGNATIUS THIRD EDITION PAGE 137