Which of the Following Were Not Among the Key Decisions

Which of the following were not among the key decisions made by Roosevelt, Stalin, and Churchill at the Yalta Conference?

A) The Soviet Union would attack Japan within three months in exchange for territorial concessions.
B) The Soviet Union would sponsor free elections in Poland, Bulgaria, and Romania.
C) Occupation zones in Germany would be assigned to each of the victorious great powers.
D) The Soviets and Americans would militarily withdraw from Europe after a peace treaty was signed.
E) A new international peacekeeping organization, the United Nations, would be set up.