Correct option is B
Annealing is a heat treatment process used to soften metals, improve their machinability, and relieve internal stresses. The process involves heating the metal to a specific temperature, holding it for some time, and then cooling it slowly (usually in a furnace).
· The primary purpose of annealing is to increase softness, making the material easier to machine, form, and shape.
· It also enhances ductility and toughness while reducing brittleness.
· Annealing is commonly used in steel, copper, aluminum, and brass industries to restore metal properties after cold working or deformation.
