Truman's main condition for using the atomic bomb was that the war would stay on if he did not use it. Option b is correct.
Harry S. Truman was to hold the 33rd Presidentalship of the United States From 1945 to 1953. He was also employed in the atomic bomb, and the principal motive for using the atomic bomb was that if he didn't, the war would proceed.
Therefore, option B is correct.
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