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 simplicity, answers should be in all lower cased letters.

[EX Q]: Category: PRESIDENTIAL FACTS 
Clue: In 1919 this trustbuster's last words were "Please put out the light"
[EX A]: theodore roosevelt

[EX Q]: Category: ADD A LETTER 
Clue: Confer if you wish, but if you add a letter to "confer", it becomes this type of evergreen
[EX A]: conifer

[EX Q]: Category: GILBERT & SULLIVAN 
Clue: In the operetta "Thespis", a troupe of actors takes over the duties on this mountain so the gods can go on vacation
[EX A]:
olympus