What was a major failure of the league of nations that the united nations corrected (20 points)
A) Nothing, the league of nations was awesome.
B) The league of nations could declare war on rogue nations, the UN cannot.
C) The league of nations included all countries in the world and the UN corrected that by only letting in the good ones.
D) The united states joined the UN and not the league of nations.
(Please help !)