In Early 1945 at the Yalta Conference

In early 1945 at the Yalta Conference,

A) Franklin Roosevelt was too ill to attend.
B) Joseph Stalin withdrew a promise to enter the Pacific war.
C) Winston Churchill left early in a dispute with Stalin.
D) it was agreed that the Soviet Union should regain land lost in the 1904 Russo-Japanese War.
E) Joseph Stalin refused to agree to Roosevelt and Churchill's plans for the United Nations.