Answer: D) noting that firebombing had already caused extensive damage in Japan.
Close to the end of World War II, the United States detonated two nuclear weapons over Hiroshima (August 6, 1945) and Nagasaki (August 9, 1945), two Japanese cities. The United States dropped the bombs after obtaining the consent of the United Kingdom. The two bombings killed 129,000-226,000 people, mostly civilians.
Before the atomic bombs, the allies had already conducted many air raids on Japan. Strategic bombing raids began in June 1944 and continued until the end of the war. These attacks destroyed about 67 Japanese cities. These extensive attacks and the damage they had caused were some of the main arguments used by supporters of the atomic bomb.
However, during the planning of the nuclear attacks, the Air Forces were looking for cities that had not been damaged extensively by the raids, as they believed this would make the assessment of the damage more accurate.