Choice "C" is correct. A Pareto diagram illustrates the cumulative effect of errors or process issues in both a line graph that accounts for all errors or issues and a histogram that displays individual errors or issues in relation to all other issues and errors in the following manner:

Choice "b" is incorrect. A fishbone diagram analyzes cause and effect and does not display the relationship between errors and process issues contemplated by a Pareto diagram.
Choice "d" is incorrect. A control chart shows the degree of compliance with goalpost quality standards over time.
Choice "a" is incorrect. Kanban is Japanese for card and is used as a supply chain and inventory control mechanism.