The correct answer is: C. increasingly, moderately.
In a changing and unstructured business environment, creativity and innovation are being increasingly demanded of executives. This is because businesses need to be able to adapt to change and come up with new ideas in order to stay competitive. Creativity and innovation can help businesses to develop new products and services, enter new markets, and improve their operations.
The other options are incorrect because they do not accurately reflect the level of demand for creativity and innovation in the business world. Option A, “excessively, rapidly,” suggests that creativity and innovation are being demanded of executives at an unreasonable level. Option B, “highly, extremely,” suggests that creativity and innovation are being demanded of executives at an extreme level. Option D, “progressively, increasingly,” suggests that creativity and innovation are being demanded of executives at a gradually increasing level.
In conclusion, the correct answer is C. increasingly, moderately.