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.

[EX Q]: Category: LADS NAMED VLAD 
Clue: In 1929, while working for RCA, this inventor & engineer demonstrated the first practical all-electronic TV
[EX A]: vladimir zworykin

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

[EX Q]: Category: FIRST LADIES 
Clue: She was valedictorian of Plains High School, class of 1944
[EX A]:
carter