How did the failure of the league of nations to prevent world war ii affect the formation of the united nations?

the us, the uk, the ussr, and china did not think the united nations would be successful, so they refused to join.
the us, the uk, the ussr, and china were very determined to create an effective organization that would not fail.
the us, the uk, the ussr, and china were afraid to give the united nations too much power and hindered the organization.
the us, the uk, the ussr, and china had not belonged to the league of nations, and therefore had no interest in the united nations.

Why do you have to ask such hard questions.

In my honest opinion , i’d say franklin d roosevelt was a president that impacted our nation , i say this because fdr is voted among top three best us presidents and he was the longest serving president by 3 terms , usually presidents only supposed to have two terms increments of 4 years , equivalent to 8 years total before election time. and he established the fdic , through the 1933 banking act and he established the us , social security system , during his presidency, and established a national minimum wage , through the fair labor standards act , fdr led the allied coalition to victory in wwii and he played a major role in the creation of the united nations.

C. congress was able to pay debts run up in the war