A toothpaste tube can be produced by

Solution (By Examveda Team)

The correct answer is (C) Hollow backward extrusion.
Here's why:
Extrusion is a process where a material is forced through a die to create a specific shape.
Forward extrusion means the material flows in the same direction as the punch or ram.
Backward extrusion means the material flows in the opposite direction of the punch or ram.
Solid extrusion is used to create solid shapes (like rods or bars).
Hollow extrusion is used to create hollow shapes (like tubes).
A toothpaste tube is hollow. Therefore, we need a hollow extrusion process.
Since the tube forms by the material flowing *backwards* (upwards) around the punch, it's hollow backward extrusion.