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: PSYCH "O" 
Clue: This type of "working" therapy gives the individual something meaningful to do
[A]: occupational therapy


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


[Q]: Category: "TRAC" MEET 
Clue: Oops!  It's a newspaper's printed correction
[A]:
retraction