Question

what part of the un has the sole function of discussing issues of international concern?
security council
general assembly
international court of justice
economic and social council

Explanation:

The General Assembly is the main deliberative, policymaking, and representative organ of the United Nations. It provides a forum for multilateral discussion of international issues including peace and security. The Security Council is mainly for maintaining international peace and security (not just discussion). The International Court of Justice is the judicial organ. The Economic and Social Council coordinates economic, social and related work.

Answer:

General Assembly