Answer :
The correct answer is "2".
The nuclear bombings of Hiroshima and Nagasaki were the last episode of the campaign of the Pacific and signaled the end of the Second World War. The first bomb was deployed on August 6th, 1945 on Hiroshima. The second bomb would be deployed 3 days later in Nagasaki, on August 9th, 1945. The Japanese Empire would announce its surrender to the Allies 6 days later, on August 15th, 1945.