Although Japan's Sea and Air Power Was Totally Shattered by the End

Multiple Choice

Although Japan's sea and air power was totally shattered by the end of 1944, why didn't the imperial government surrender to the United States?

A) President Roosevelt refused to allow a surrender until a full-scale invasion of Japan could be accomplished.
B) Japanese military leaders insisted on fighting until the bitter end.
C) The tripartite pact required that Japan continue fighting until Germany had been victorious in Europe.
D) Every Japanese election demonstrated that the Japanese people wanted to continue the war.
E) The Emperor had developed Alzheimer's disease and did not understand what was happening.