A. They called for a conference to discuss forming a new international organization, the United Nations.
Explanation:
The Yalta Conference, at the end of World War II, is also known as the beginning of the Cold War. During the Conference, Roosevelt (United States), Churchill (England) and Stalin (Soviet Union) met and agreed on scheduling a meeting in San Francisco to create the United Nations, <em>they also agreed to demand Germany's surrender and to divide the territory into four territories that would belong to the three nations and France.</em> <em>Stalin would permit free elections in Eastern Europe </em>(a point which he violated and instead installed the Soviet Union through Eastern Europe). President Franklin Roosevelt died two months after the controversial Yalta Conference.