What is the function of the WHO?

The World Health Organization (WHO) serves as a key agency within the United Nations system, specifically focused on public health. Its primary function is to coordinate international health responses and develop health policies that address global health issues. This involves working with countries, health organizations, and other stakeholders to ensure effective health interventions, promote health research, and establish health standards.

By coordinating health responses, the WHO can effectively manage health crises, such as outbreaks of infectious diseases, and promote health initiatives to improve population health on a global scale. This role is essential in ensuring that countries can respond to health challenges collaboratively and cohesively.

The other options pertain to different areas of global policy. Promoting agricultural policies is more specific to agricultural organizations or agricultural sections of departments. Improving food security is often addressed by food safety and agricultural organizations rather than primarily the WHO's health focus. Regulating international food trade involves trade organizations and governmental bodies that focus on economics and trade agreements, which are not the primary responsibilities of the WHO.