They rose due to nationalism. Germans wanted revenge for WW1 where they thought they were punished too harshly, while Japan deemed that it was a great nation and that it should enter the continent through China. Germans fell because they became too spread out and couldn't fight the war an all fronts, while the Japanese lost it because they enraged the US who nuked them.
I would say C) Evaporation
Hope this helps, Good luck! (:
Answer: The Kansas-Nebraska Act repealed the Missouri Compromise, allowing the possibility of slavery south of latitude 36˚30’.
Explanation: