Indicate the most accurate statement: a. Whereas substantive law determines the rights and duties of individuals, adjective law provides the mechanism through which these rights and duties are enforced. b. Because the conduct of litigation is so specialised, litigants normally instruct attorneys and advocates to conduct litigation on their behalf in all South African courts. c. The trial in Anglo-American civil procedure is marked by its orality which applies to the parties, their counsel and witnesses only. d. The principle that litigants have the competence to either commence or defend proceedings and to prosecute their respective cases, support their right to negotiate an out-of-court settlement