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 19th CENTURY 
Clue: 1853 purchase that brought the contiguous U.S. about up to its present area
[A]: the gadsden purchase


[Q]: Category: TV TIME 
Clue: From the planet Melmac, this title TV character liked to eat cats
[A]: alf


[Q]: Category: SPORTS NOTABLES 
Clue: Michael "The Albatross" Gross won gold medals in this sport using an arm span far exceeding his height
[A]:
swimming