मुख्य रूप से संरचित दृश्य मैपिंग के माध्यम से मूल कारणों (root causes) की खोज के उद्देश्य से बनाई गई तकनीक कौन सी है?

Match List-I with List-II: List-I: a. Pareto Chart b. Fishbone Diagram c. Flowchart d. Check Sheet List-II: i. Pictorial representation of stages in a process ii. Tool for recording variables/data iii. Identifies the intensity or frequency of problems iv. Identifies the relationship between defects and root causes

To highlight which few causes contribute to most of the problem impact, managers typically apply: