Which of the following sentences best describes the role of the United Nations in world affairs?

The United Nations plays a crucial role in promoting global cooperation, maintaining peace and security, and addressing global challenges and crises through diplomacy and international law.

The role of the United Nations in world affairs can be described as follows: The United Nations serves as an international organization composed of member states that aims to maintain peace and security, promote sustainable development, protect human rights, uphold international law, and provide a platform for dialogue and cooperation among nations.

To determine which of the following sentences best describes the role of the United Nations in world affairs, you would need to look at the options provided. Please provide the sentences for me to evaluate and explain further.