The correct answer is C) Using the bomb would shorten the war and avoid heavy casualties among invading troops.
The argument that decided the debate over using the atomic bomb against Japan in 1945 was "Using the bomb would shorten the war and avoid heavy casualties among invading troops."
Although the decision could be controversial for the deaths it caused, the US military and the US government decided that this was the best decision because they did not want more US and Allies soldiers lost in battle and the bombing meant to end the war quickly. So US President Harry Truman dropped the bomb over Hiroshima on Agust 6, 1945 and over Nagasaki on August 9, 1945.
