The correct answer is A) the dropping of the atomic bomb.
The event that raised hopes over an American victory in the Pacific was the dropping of the atomic bomb.
Although it was one of the most controversial decisions in human history, the dropping of the atomic bomb over two Japanese cities represented the end of World War II. Experts said that this decision was made to minimize the number of deaths if the war would have been fought on different fronts.
President Harry S. Truman ordered to launch the nuclear bomb over Hiroshima on August 6, 1945, and over Nagasaki on August 9, 1945.
