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: "R"ITERS 
Clue: This author of the hitchhiking novel "Even Cowgirls Get the Blues" once hitchhiked across the U.S.
[A]: tom robbins


[Q]: Category: THERE'S A WEIGHT 
Clue: At the Kentucky Derby, the horses' equipment & these can weigh no less than 126 lbs. combined
[A]: the weight of the jockey


[Q]: Category: ROBIN WILLIAMS MOVIES 
Clue: 2009: Robin & John Travolta have to take care of 7-year old twins
[A]:
old dogs