Forging:

A. happens when metal is melted into a liquid.
B. is when metal is shaped by hammer blows.
C. can only happen if the metal is cold.
D. is a relatively new method of metalworking.
E. None of these answers are correct.

B
Forging is an ancient metalworking technique in which metal is shaped by hammer blows. The forging process can involve hot or cold metals.