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: SCIENCE "T"ALK 
Clue: It's what the "t" stands for in tRNA
[A]: transfer


[Q]: Category: ON THE COAST 
Clue: A 19th c. "Committee of Vigilance" fought the crime that gave part of San Francisco this North Africa-inspired nickname
[A]: the barbary coast


[Q]: Category: UNREAL ESTATE 
Clue: In "The Prisoner of Zenda", the king of this fictional Central European kingdom is held captive in Zenda Castle
[A]:
ruritania