When the bombing of Hiroshima and Nagasaki took place, after the Japanese Empire surrendered, US turned its forces to retaking France and pushing the Nazi Germans out of the conquered lands. Italy was facing both attacks from its own people while forces from US and Russia. Ending the war was the suicide of Adolf Hitler in 1945.
Morally--many scientists in particular could predict the devastating effects of the atomic bomb. They urged leaders not to use the technology because they knew the death toll would be huge.
Financially--some also opposed the production of the atomic bomb as being a waste of money. Traditional military weapons were working and some were skeptical that the technology would even work.
Boujouze, republic, and then there was a general middle class. So three
The answer for this is C.