In chapter $3,$ what is the "known$/$unknowns$"$ discovery at Mars

Question $2$ options:

A$)$

A new analytical implementation program to foster additional product knowledge

B$)$

A mechanism of statistical analysis that allows grouping of similar data

C$)$

Risk information known by associates, but not well communicated as directly important to the company

D$)$

None of the above

E$)$

All of the above