I'm going to be honest that I'm not 100% sure with my answer but, one of the candidates had a lower popular vote (the people) and the other candidate had a higher electoral vote (the representive vote) and although the candidate didn't have the popular vote, they still won due to the electoral votes.
Japan ( Hiroshima and Nagasaki)
But, I don't how are there more than 1 country recovering from atomic bomb explosion
I'm sure the answers d, because it would help way more than the other options you'd want to know first hand what happen the only way to do so is to speak to those who fought in the war.
The simularity between the two industrial revolutions is that they both involved an increase in the degree to which machines were being used to do tasks that had once been done in other ways