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: ALL ABOUT AUTHORS 
Clue: "The Remains of the Day" author Kazuo Ishiguro was a grouse beater for this grandmother of Prince Charles
[A]: the queen mother


[Q]: Category: YOU'VE GOT COMPANY 
Clue: This Donkey Kong company introduced its home video game console in Japan in 1983
[A]: nintendo


[Q]: Category: MOUNTAINS 
Clue: This range forms an arc from Slovakia to Romania with both ends lying on the Danube river
[A]:
the carpathians