Which ONE of the following statements BEST describes what Lean Six Sigma is really about? Select one: a. Lean Six Sigma is about manufacturing products with single piece flow b. Lean Six Sigma is about improving our processes so that we can meet customer expectations with our products and services as close to 100% of the time as possible c. Lean Six Sigma is about the application of statistical tools and techniques d. Lean Six Sigma is about increasing the COPQ of our processes