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.

Category: NEW ZEALAND 
Clue: New Zealander who took on the giant task of making 3 films at once about the little hobbits
peter jackson

Category: FILE UNDER "S" 
Clue: Head & Shoulders, Agree, & Pert Plus are leading types of these
shampoos

Category: STATE CAPITALS 
Clue: It's the capital of the most populous U.S. state

sacramento