Answer:
Security Council
Explanation:
The UN charter called for the establishment of a Security Council, or "upper house." The Security Council serves as the executive branch of the United Nations.
If your choices are the following:
a). John Sloan
b). George Washington Plunkitt
c). Thomas Nast
d). William M. Tweed
Then the answer is d). William M. Tweed.
It was an act of the congress of the confederation of the United States, hoped that answered your question :)