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.

Category: ENTERTAINMENT 
Clue: This title character who debuted in 1999 was created by former marine biology educator Steve Hillenburg
spongebob squarepants

Category: PEOPLES OF THE WORLD 
Clue: Numbering about 25 million, they're the largest ethnic group in the world with no home nation
the kurds

Category: OPERA SINGERS 
Clue: In 1999 Placido Domingo opened the Met for a record 18th time, breaking this man's record of 17

enrico caruso

