Prior to Ordering the Use of an Atomic Bomb Against

Prior to ordering the use of an atomic bomb against Japan,President Harry Truman

A) issued an ultimatum to Japan to surrender or face utter devastation.
B) sent evidence of a test explosion to the Japanese government.
C) did not send any kind of message to Japan.
D) warned the Japanese about the atomic bomb and sent evidence of its effect.
E) told Japan to evacuate Hiroshima or face the consequences.