The principle morally requires employees to support the rules of the organization as long as the organization is just (or fair) and employees have voluntarily accepted some benefits or opportunities in order to further their own interests.

Fairness principle    

Explanation:

The fairness principle is the term which is used to refers to the action or the outcome that should be taken as the fair decision. The fairness principle basically establishing the various types of moral standards that helps in making the various types of decisions in an appropriate manner.

The fairness is characterizing on the basis of , justice and liberty and it is refers to the fair equality in terms of opportunities in an organization.

According to the given question, the fairness principle supporting the various types of fairness rules in the firm for providing the various types of benefits to the employees of an organization.

 Therefore, Fairness principle is the correct answer.