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: MILITARY TRAINING BASES 
Clue: Service branch with a San Diego recruit depot & a Yuma air station
[A]: marines


[Q]: Category: WHAT'S WRONG WITH ME? 
Clue: Blood tests that measure vitamin B12 levels are used to diagnose the pernicious form of this
[A]:
anemia