Hugo Grotius defines three methods to accommodate misunderstandings among states without a war. (Grotius, 1121-1127) The first of these methods is the conference method. The second method is arbitration between parties who do not belong to the same jurisdiction and have no common judge to appeal to, which he considers to be not only convenient but necessary that “Congresses of Christian states were held, where, by them who are no ways interested on one side or other, the differences of contending parties might be made up; and that some means were thought upon to oblige the parties at variance to accept of a peace upon fair and reasonable terms.” What Grotius has suggested is still an important method of conflict resolution in international relations and considered as one of the main functions of diplomacy. The third and the last method to prevent war according to Grotius is to cast lots. The correct answer is B.