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: ANATOMY 
Clue: Organ whose workings were the subject of a 1604 work by Johannes Kepler

A: the eye
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Q: Category: TRANSPORTATION 
Clue: In 1910 the "Deutschland" inaugurated commercial passenger service in one of these

A: zeppelin/dirigible
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Q: Category: WORLD HISTORY 
Clue: This person was the reigning monarch of Great Britain when the U.S. national anthem was written

A:
george iii
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