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: ANCIENT CITIES 
Clue: It sided with Sparta in the Peloponnesian War, & the Bible includes 2 letters to its Christians
[A]: corinth


[Q]: Category: FOOD & DRINK 
Clue: Before the introduction of Diet Coke, this was he leading diet soft drink in the U.S.
[A]: tab


[Q]: Category: WORLD OF TELEVISION 
Clue: This current U.S. TV show is shown in France as "Aux Frontieres du Reel" ("At the Borders of Reality")
[A]:
the x-files