Final answer:
The third step in Lewin's Change Theory is a) refreezing, where changes are integrated into the workplace as the new standard.
Step-by-step explanation:
The third stage in Lewin's Change Theory is referred to as refreezing. At this stage, the change has been fully integrated into the work setting and becomes the new norm. This stage solidifies the new behaviors or processes after the transition, ensuring that the change is sustained over time.