Answer:
The correct answer is letter "E": Kurt Lewin.
Step-by-step explanation:
German psychologist and philosopher Kurt Lewin (1890-1947) developed a Change Model involving three steps: Unfreezing, Changing, and Refreezing. It represents a very simple model to understand the change process compared to the psychical matter state of the ice. The model starts by creating the idea in the organization that something must not continue to be the same (unfreezing), then moving towards the new desired behavior (changing) and, finally, solidifying that new behavior as the norm (refreezing).