Correct option is B
The cold working technique best suited for bending a long strip of iron metal into a roll shape is bending. In bending, the metal is plastically deformed along a straight axis to achieve the desired curvature without removing material.
Squeezing applies compressive forces to reduce thickness.
Shearing cuts the material.
Drawing stretches the material to reduce cross-section.
For forming a roll, bending directly shapes the strip into a curved or cylindrical form.
