Answer:
C. process innovation
Step-by-step explanation:
Based on the information provided within the question it can be said that the approach being used in this scenario is known as process innovation. This refers to implementing significant changes to the current techniques, equipment and/or software of an organization in order to significantly improve the overall processes/costs/products of the organization. Which is what Dr. Shetty has done by implementing thousands of small changes in order to drastically lower the costs.