Answer:
Correct answer is B. United Nations.
Step-by-step explanation:
Option A is not correct, because although the role of League of Nation was to support human rights and development of people all around the world, it disappeared due to ineffectiveness. Its role was taken after WW2 by the UN, and therefore option B is correct one.
Option C is not correct as this organization focuses solemnly on trade.
D is not correct answer is not correct because organization was created by the post-Soviet countries.