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: AMERICAN POETRY 
Clue: He wrote "Memorial Rain" for his brother Kenneth MacLeish, a pilot whose plane was shot down during WWI
[A]: archibald macleish


[Q]: Category: GLAND FINALE 
Clue: This human gland important in the immune system takes its name in part from its resemblance to an herb
[A]: the thymus gland


[Q]: Category: WORLD WAR I 
Clue: The Danton was sunk, but the French battleship named for this "Candide" author survived the war
[A]:
voltaire