The correct option is D Trusteeship Council
The United Nations has six main organs: General Assembly, Security Council, Economic and Social Council, International Court of Justice, Trusteeship Council, Secretariat. Apart from these six major organs, there are many affiliated organisations of the United Nations that help it in its functions like International Labour Organisation (ILO), Food and Agriculture Organisation (FAO), World Health Organisation (WHO), World Bank (WB), International Monetary Fund (IMF), United Nations Children’s
Fund (UNICEF), United Nations Educational Scientific and Cultural Organisation (UNESCO). The United Nations Trusteeship Council was established to help ensure that trust territories were administered in the best interests of their inhabitants and of international peace and security.