In chapter $21,$ what is the purpose of the $5$ whys analysis?

Question $5$ options:

A$)$

It is only a generic system of questions and has no overall real application

B$)$

To integrate into the core business application of asking for reasons when making decisions

C$)$

An analysis that begins with the first why level and continues to progress in why sublevels of reasoning to derive the root cause of the situation or question

D$)$

A systematic questioning that leads to general overall information analysis with the use of a mapping diagram and then displays multilayer boxes to represent each question

E$)$

None of the above