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: BROWN 
Clue: The brown type of this still has its bran, so it's more nutritious than the white or the polished type

Answer: rice


Question: Category: THE 16th CENTURY 
Clue: In the 1569 Union of Lublin, Zygmunt II united Lithuania & this country

Answer: poland


Question: Category: SIEGFRIEDS & ROYS 
Clue: Before he became the "King of the Cowboys" on film, he formed the Sons of the Pioneers singing group

Answer:
roy rogers