instruction:
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.
question:
Category: THE 76th ACADEMY AWARDS 
Clue: He took home the little bald guy for the first time in 4 tries, winning Best Actor for "Mystic River"
answer:
sean penn


question:
Category: FIRST 3 LETTERS OF STATES 
Clue: Jeremy Piven's agent role
answer:
arizona


question:
Category: 19th C. AMERICA 
Clue: The 1848 Treaty of Guadalupe Hidalgo made the Rio Grande the border between Mexico & this state
answer:

texas