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: EARLY ART 
Clue: This art form of setting stones or glass into mortar was the main decorative art of the Byzantine Empire

Answer: mosaic


Question: Category: ANTHONY HOPKINS FILMS 
Clue: In "Amistad", about an 1839 uprising of Africans on a slave ship, Hopkins played this former president arguing for the defense

Answer: john quincy adams


Question: Category: BIG MOVIES 
Clue: Sausage King Jimmy Dean played a former sheriff in this 1990 film named for his biggest hit record

Answer:
big bad john