Which of the following functions is a primary purpose of the United Nations in the twenty-first century?

The primary purpose of the United Nations (UN) in the twenty-first century encompasses a range of functions, but one of its most critical roles is coordinating international responses to humanitarian crises. This is particularly relevant in today's world, where conflicts, natural disasters, and health emergencies can have widespread and devastating effects on populations.

The UN mobilizes resources, provides emergency assistance, and coordinates efforts among member states and various humanitarian organizations to alleviate suffering in times of crisis. For example, the UN often leads efforts during natural disasters, such as earthquakes or floods, by deploying humanitarian aid, ensuring that affected populations receive food, shelter, and medical assistance. It also plays a crucial role in international dialogue and collaboration to address the root causes of such crises, working to promote peace, stability, and sustainable development.

Other options may reflect important functions related to global governance, but they do not capture the immediate and critical nature of the UN's role in responding to humanitarian needs in the current era. Combating inequality and promoting trade, while essential, are often part of broader policies and agendas that may not address immediate crises as directly as humanitarian coordination does.