Which body was established by the UN to work specifically in development and humanitarian relief programmes?

The correct response identifies UN Volunteers as the body established by the United Nations to specifically address development and humanitarian relief programs. UN Volunteers is a program that mobilizes volunteers to contribute their skills and time to support various initiatives aimed at improving living conditions and sustainable development around the world. It plays a critical role in enhancing the capacity of local communities by providing essential support during crises and helping to build resilient ecosystems through development activities.

The other options represent different functions within the UN framework. The Trusteeship Council was established to oversee the administration of trust territories and ensure that their inhabitants were prepared for self-government. The International Court of Justice serves as the principal judicial organ of the UN, settling legal disputes between states and providing advisory opinions. The General Assembly is one of the six main organs of the UN that provides a platform for member states to discuss and coordinate on international issues but does not focus exclusively on development or humanitarian relief. Each of these entities has distinct roles, highlighting the specialized function that UN Volunteers fulfills in the context of humanitarian and development work.