The correct answer is D.
Among the most important bodies of the UN, are the General Assembly, the Security council, the Economic and Social council, the Trusteeship council, the international court of justice and the Secretariat.
The Security council bears the main responsibility for maintaining international peace and security, and all UN members may bring their disputes to the forum of the Security council for mediation.
The General assembly has the right to discuss any question within the scope of the charter affecting or affecting the powers and functions of any UN organ.
