Trigger
Muzzle
Pallete
Barrel E. Bullet
Answer is Wrong!
Answer is Right!
The answer is C. Pallete.
A trigger is a lever or button that is pulled or pressed to fire a gun. A muzzle is the end of a gun barrel from which the bullet or shot is discharged. A barrel is the long, cylindrical tube of a gun that contains the bullet or shot and guides it down the bore to the muzzle. A bullet is a small projectile that is fired from a gun.
A palette is a thin, flat board or tray on which artists mix their paints. It is not a part of a gun.