In a report your colleague gave you the defects' description, root causes, severity, owner, and possible resolutions $.$ You want to know which causes are most serious. The reason is that you want to prioritize the potential causes of the problems to isolate the critical few causes of defects from the uncritical many. Which of the following tools should you use?

Question $13$ options:

a$)$

Pareto chart

b$)$

Control chart

c$)$

Fishbone diagram

d$)$

Scatter diagram