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: ON THE ROCKS 
Clue: This rock formed from hardened lava formed the Hawaiian Islands

Answer: basalt


Question: Category: LITTLE LEAGUE 
Clue: Begun in 2001, an orientation program for these people tells them not to freak out over coaches' or umpires' decisions

Answer: parents


Question: Category: SECRETARIES OF STATE 
Clue: Dean Acheson continued the European recovery plan of this predecessor

Answer:
george marshall