The development of an atomic bomb by the United States did which of these?

A. pressured German leaders to surrender
B.increased tensions between Truman and Stalin
C. worried the leaders of France and Great ritain
D.led Stalin to postpone a Soviet invasion of Japan

http://www.answers.com/topic/cold-war-1945-1950-the-start-of-the-atomic-age

The correct answer is D. The development of an atomic bomb by the United States led Stalin to postpone a Soviet invasion of Japan.

To get this answer, you can start by understanding the historical context. During World War II, the United States, along with other Allied powers, was engaged in a war against Germany and Japan. As the war progressed, the United States initiated the Manhattan Project, a secret research program aimed at developing an atomic bomb.

Once you understand this context, you can eliminate options A, B, and C. The development of the atomic bomb did not directly pressure German leaders to surrender, as Germany surrendered before the atomic bomb was completed and used. It also did not increase tensions between Truman and Stalin, as Truman and Stalin had already experienced growing tensions due to conflicting ideologies and political interests. Furthermore, while the development of the atomic bomb worried leaders of France and Great Britain, it did not specifically state that in this answer choice.

To determine the correct answer between the remaining options, you need to consider the historical consequences of the atomic bomb. In the final stages of World War II, the United States successfully tested the atomic bomb and subsequently dropped two atomic bombs on the Japanese cities of Hiroshima and Nagasaki. The display of the destructive power of these bombs, along with the rapid victory of the Allies in the Pacific theater, alarmed Joseph Stalin, the leader of the Soviet Union.

Stalin had made plans to invade Japan after Germany's surrender, as agreed upon in the Yalta Conference. However, upon learning about the atomic bomb and witnessing its devastating effects, Stalin decided to postpone the Soviet invasion of Japan. He feared the potential consequences of challenging a nation equipped with such destructive weapons.

Therefore, based on this analysis, the correct answer is D, as the development of the atomic bomb by the United States led Stalin to postpone a Soviet invasion of Japan.