Which of the following statements is true about Lean method? Question 11 options: A) It improves the quality of a firm's output by removing any causes of defects in the business processes. B) It is a process of organizing and restructuring every aspect of a system to ensure optimal efficiency. C) It is designed to provide maximum value to customers with the lowest possible amount of investment. D) It is a process that brings employees and managers together to brainstorm to improve performance