Answer:
Option B (Cold working) would be the correct alternative.
Step-by-step explanation:
- Cold working highlights the importance of reinforcing material without any need for heat through modifying its structure or appearance.
- Metal becomes considered to have been treated in cold whether it is treated economically underneath the material's transition temperature. The bulk of cold operating operations are carried out at room temperature.
The other possibility isn't linked to the given scenario. Therefore the alternative above is the right one.