Answer:
a. Procedural justice.
Explanation:
Procedural justice is the process that explains how a decision is made to follow due process before arriving at such decision, by people in position of authority. Usually, if there is a conflict, two or more parties would be involved. Where the decision favors one of the parties, procedural justice ensures fairness in making such decision hence affirms people's confidence in matters of public interest.
For a decision to be fair and acceptable by people, it must be made open and people must be allowed to participate in the decision making process. Also, the criteria through which the decision will be made should be disclosed to all before hand.