(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
EXPLANATIONS BELOW
Concept note-1: -Prior to ordering the use of an atomic bomb against Japan, President Harry Truman.. issued an ultimatum to Japan to surrender or face utter devastation.
Concept note-2: -Truman wanted to avoid an invasion of Japan. Truman hoped that the use of the bomb would and it’s astonishing effects would be enough for Japan to surrender and they would not have to invade them. The US dropped the bombs at Hiroshima and Nagasak.