Answer:
A. They called for a conference to discuss forming a new international organization, the United Nations.
Step-by-step explanation:
The Yalta Conference, which took place at the end of World War II, is also seen as the start of the Cold War. During the conference, Roosevelt (US), Churchill (UK), and Stalin (USSR) met and agreed to hold a meeting in San Francisco to establish the United Nations. They also agreed to demand Germany's surrender and divide the territory into four territories that would belong to the three countries and France. In Eastern Europe, Stalin would allow free elections (a point which he violated and instead installed the Soviet Union through Eastern Europe). Two months after the tumultuous Yalta Conference, President Franklin D. Roosevelt died.