Which of the Following Is a Necessary Condition for a Dispute

Which of the following is a necessary condition for a dispute to come before the judiciary for resolution?

A) There must be a complainant who alleges a specific wrong act and a respondent who denies that the act was wrong or that he or she committed the act if it was wrong
B) The controversy must be justiciable
C) The controversy in question must involve someone who has actually been harmed or for whom which harm is clearly imminent
D) All of the above