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.
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Question: Category: CHARITIES 
Clue: Major Bill Hendricks, a Warner Bros. publicist, founded this holiday charity in 1947

Answer: toys for tots


Question: Category: WORLD EVENTS 
Clue: In 2003, 120 years after it made headlines, a book on this was subtitled "The Day the World Exploded"

Answer: the eruption of krakatoa


Question: Category: LABOR UNION PRESIDENTS 
Clue: This current union president was the youngest person ever to receive a star on the Hollywood Walk of Fame

Answer:
melissa gilbert