Which of the following was an outcome of the Yalta conference?

The Yalta conference was held in February 1945, and was attended by US President Franklin D. Roosevelt, British Prime Minister Winston Churchill, and Soviet Premier Joseph Stalin. The main outcome of the Yalta conference was:

1. The division of Germany into four occupation zones, each controlled by one of the four Allied powers (the US, UK, Soviet Union, and France).

2. Agreement to hold free and democratic elections in the countries liberated from Nazi occupation, and the establishment of the United Nations to promote international peace and security.

3. The Soviet Union’s pledge to enter the war against Japan within three months of Germany's surrender.

Overall, the Yalta conference was an attempt to establish a post-war world order and to promote peace and cooperation among the Allies, but it was also the start of a new period of tensions between the Western powers and the Soviet Union.