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.

[Q]: Category: TO REMAIN "SILENT" 
Clue: Quiet alliterative nickname of the U.S. Navy's submarine fleet
[A]: the silent service


[Q]: Category: LITERARY TRILOGIES 
Clue: "Number One" is actually the number two novel in a trilogy by this author of "U.S.A."
[A]: john dos passos


[Q]: Category: LEGAL BRIEFS 
Clue: It's an A.D.A.; Jill Hennessy played one on TV
[A]:
assistant district attorney