Answer:
The correct answer is D. The most essential outcome from the Yalta Conference was the agreement to have the Soviet Union join other Allies in the war against Japan.
Explanation:
The Yalta Conference was a meeting of the leaders of the World War II Allies between February 4 and February 11, 1945 in Yalta, Ukraine.
The epicenter of the conference was military coordination, as it was thought that allied troops would need to land in Japan, which would have resulted in a huge loss of soldiers, and although Americans advanced in research to obtain the atomic bomb, for the moment the statesmen did not want to rely on such an uncertain weapon. That is why Roosevelt needed the collaboration of the Soviet Union and its numerous forces to give Japan a big hit, which seemed impossible because formally the USSR and the Japanese Empire were not at war. Finally, it was agreed that the Soviet Union would attack Japan three months after Germany's defeat.
