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: ANTARCTICA 
Clue: A research base at the South Pole is co-named for these 2 explorers, the first 2 to reach it
[A]: amundsen


[Q]: Category: ADMIRALS 
Clue: Opposed to war with the U.S., he nevertheless planned the Japanese attack on Pearl Harbor
[A]: isoroku yamamoto


[Q]: Category: STEELY DAN 
Clue: Before breaking up in 1981, Steely Dan released an album named for this kind of South American cowboy
[A]:
a gaucho