Final answer:
The answer to the student's question is 'Six Sigma', which is a methodology used to improve process quality by reducing variation and ensuring process improvements through trained professionals such as green belts and black belts, fostering innovation and problem-solving within organizations. The correct option is c.
Step-by-step explanation:
The purpose of Six Sigma is to create teams of expert change agents known as "green belts" and "black belts" to take control of the problem-finding and problem-solving process and then to train other employees in implementing solutions.
This methodology focuses on reducing variation in processes and improving quality through a data-driven approach. It encompasses a range of tools and strategies which are embodied in the roles of these specially trained professionals.
Six Sigma differs from merely making incremental product innovations, as it is a systematic approach to both identify and solve underlying process issues.
It is also distinct from statistical process control, which involves monitoring and controlling a process through the use of statistics, but not necessarily the strategic problem-solving 'martial arts belt' structure Six Sigma employs.
The focus of Six Sigma is on innovation and continuous improvement, harnessing a structured problem-solving process to enhance both products and processes within an organization. The correct option is c.