Detailed Instructions: 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.
Q: Category: THE POST OFFICE 
Clue: Due to demand Bugs Bunny's U.S. commemorative stamp was the first to have a second printing since this one
A:
the elvis presley stamp