Which of the Following Is True About Value Systems

Which of the following is true about value systems?

A) They are the terminal and instrumental values that are guiding principles in an individual's life.
B) They are reward systems that encourage valued employees to set high standards for themselves.
C) They highlight valuable contributions employees have made toward organizations in the past.
D) They are the rules valued by organizations by which employees are expected to abide.
E) They are the personality traits of employees valued by organizations.