Match each lean business concept with its best description by entering its letter in the blank.
1. _______ Customer orientation A. Inventory is acquired or produced only as needed.
2. ______ Total quality management B. Flexible product designs can be modified to accommodate customer choices.
3. ______ Just-in-time manufacturing C. Every manager and employee constantly looks for ways to improve company operations.
4. ______ Continuous improvements D. Focuses on quality throughout the production process.