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: TICKLE THE IVORIES 
Clue: The Bible says this wise king's ships went to Tarshish to bring back "gold, and silver, ivory, and apes, and peacocks"

Answer: solomon


Question: Category: ART & ARTISTS 
Clue: An X-ray of his "Blue Boy" has revealed the figure of a small dog that was painted out

Answer: thomas gainsborough


Question: Category: HAPPY TO BE A "BUM" 
Clue: There are about 50 species of these pollinators in North America

Answer:
bumblebees