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: ROYALTY 
Clue: Denmark's Queen Margrethe II was born in this "wonderful, wonderful" Danish capital in 1940

Answer: copenhagen


Question: Category: ANCIENT GREEKS 
Clue: This actor of the 6th century B.C. is credited with introducing the use of masks on stage

Answer: thespis


Question: Category: ALL ABOUT ELEPHANTS 
Clue: Mama elephants signal their kids to come by clapping these

Answer:
their ears