You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For consistency, answers should be in all lower cased letters.

[Q]: Category: WE'RE NO. 1 
Clue: Nicaragua was the first country to ratify this charter in 1945; the U.S. took another 3 weeks
[A]: u.n. charter


[Q]: Category: IN OTHER WORDS... 
Clue: An ancient alma mater attempt
[A]: the old college try


[Q]: Category: U.S. GOVT. ABBREV. 
Clue: Take a look at this selfless group, VISTA
[A]:
volunteers in service to america