The purpose was to keep blacks and white separated <span />
The right answer is "B. Japan was prolonging a terrible and bloody war that had an inevitable outcome."
Throughout the text it is notable that the US is showing that the terrible consequences that the Japan was going through was because Japan was extending the war.
This is quite clear in the passage. "also, because of their leaders' refusal to accept the declaration of surrender that would honorably honor Japan's end to this useless war, we used our atomic bomb."
Answer:
The answer to this question is A) It contributed to the growth of the US economy after the war.
The economy started booming after the war due to the Servicemen's Readjustment Act of 1944