What Notable Change Ensured the United Nations a Greater Chance

What notable change ensured the United Nations a greater chance of success than its predecessor, the League of Nations?

A) The United Nations drafted a global constitution that unified all member nations in a global government.
B) All countries in the world received equal membership and had equal say in all United Nations decisions.
C) Both the United States and the Soviet Union were active members from the outset.
D) The finances, working space, and bureaucracy of the United Nations were entirely independent from any member nation, having been underwritten by endowments from many wealthy families and organizations.