What is the United Nations’ main role in solving problems related to human rights and civil liberties?

To set an international standard for human rights and civil liberties
To provide emergency medical services
To regulate international trade
To enforce global currency exchange rates

The United Nations' main role in solving problems related to human rights and civil liberties is to set an international standard for human rights and civil liberties. The UN works to promote and protect fundamental human rights and freedoms for all individuals, regardless of their nationality, ethnicity, religion, or any other characteristic. This includes monitoring and reporting on human rights abuses, providing assistance to member states in achieving human rights goals, and implementing programs to educate and advocate for human rights around the world.