The correct answer is C. To perform as an international platform for discussions.
Step-by-step explanation:
The United Nations is an international organization created after the Second World War to prevent conflicts between nations. Due to this, one of the main objectives of this organization is to act as a mediator between parties or countries that have a conflict. This includes the creation of international platforms for discussions that allow parties involved in a conflict to find conflict resolutions or peace treaties. In this way, the United Nations prevents any future wars and promotes cooperation between countries. Thus, one of the ways the United Nations maintain international peace is by acting as an international platform for discussions (Option C).