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: THE 16th CENTURY 
Clue: In the 1569 Union of Lublin, Zygmunt II united Lithuania & this country
[A]: poland


[Q]: Category: PRESIDENTIAL PETS 
Clue: Charlie, one of the Kennedys' dogs, was a distant offspring of the dog that played this role in "The Thin Man"
[A]: asta


[Q]: Category: WORLD HISTORY 
Clue: In 1785 this future French emperor graduated from military school in Paris, 42nd in his class of 58
[A]:
napoleon