This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Microbiology
The muzzle velocity of given firearm is 
Select and explain. 
A. 150 m/s, B. 300 m/s, C. 360 m/s, D. 1500 m/s
A: 150 m/s
Answer: A: 150 m/s 
Explanation: The revolver, which tends to have a low muzzle velocity of 150 m/s, is a sho barreled weapon with its ammunition held in a metal drum, which rotates each time the trigger is released.The muzzle velocity of pistols varies between 300 and 360 m/s.The rifle is a long-barreled shoulder weapon capable of firing bullets with velocities up to 1500 m/s.