At base, there is an ethical justification for the dropping of the bomb on Hiroshima as the United States was ready to mount a full scale invasion of Japan from China.
However, the Japanese were not given adequate time to surrender and so the dropping of the bomb on Nagasaki was inexcusable.
Americans discriminated against Irish immigrants because they were Catholic.
I think that it is C. White Americans cuz the US hadn't fully come to terms of different ethnicities be given the same respect.
Answer: During the gilded age the three factors that transformed were, new business practices, new technology, and the expansion of railroads.