Correct option is D
Forging is a metal-forming process in which a metal is shaped by applying compressive forces when the material is in its
plastic condition. The term "plastic condition" refers to the state in which the metal is ductile and can undergo significant deformation without breaking. This typically occurs when the metal is heated to a specific temperature, allowing it to deform under controlled pressure.
The process does not involve the metal in a liquid or elastic state, as those conditions are unsuitable for the application of forging forces.
