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 consistency, answers should be in all lower cased letters.
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Question: Category: FOREIGN NATIONAL PARKS
Clue: Great Gobi Desert

Answer: mongolia

Question: Category: POTENT POTABLES
Clue: This "avian" voka brand is "created in the...Cognac region of western France under the...eye of the maitre de chai"

Answer: grey goose

Question: Category: THE U.S. MINT
Clue: During WWII these were made of steel, but a rare 1943 copper one has sold for over $80,000

Answer:
penny