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 ELEMENTS 
Clue: Most fluorescent lights are filled with a combination of argon & this element, Kr

A: krypton
****
Q: Category: BIRDS 
Clue: The willow ptarmigan, which makes its home in Arctic areas, is this state's official bird

A: alaska
****
Q: Category: ROAM 
Clue: Roam to this former SSR on the Gulf of Finland & you'll hear a language closely related to Finnish

A:
estonia
****