A lot of countries tried looking in to developing their own bombs. However, they also thought that the use of them was inhumane, particularly as there were signs that Japan was already preparing to surrender. The U.S claimed that it shortened the war, but some argue that the cost of civilian life compared to the length of time shortened was not worth it
Inflation raises prices, lowering your purchasing power. It also lowers the values of pensions, savings, and Treasury notes. Assets such as real estate and collectibles usually keep up with inflation. Variable interest rates on loans increase during inflation.
This one I think is D, rule of law but not 100% certain. Comment after so others will know if correct or not.