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.

Q: Category: LANGUAGES 
Clue: Mazarec is the language of the Mazarec people of Oaxaca in this country

A: mexico
****
Q: Category: WINE 
Clue: The Douro Valley in this country is an important port producer

A: portugal
****
Q: Category: PLANTS 
Clue: The raw materials required for photosynthesis are water & this gas

A:
carbon dioxide
****