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 consistency, answers should be in all lower cased letters.

[Q]: Category: A LITTLE OF THE BUBBLY 
Clue: Roy Allen opened root beer stands in 1922 & introduced this brand name for his product
[A]: a&w


[Q]: Category: 17th CENTURY AMERICA 
Clue: In the spring of 1699 this pirate visited Narrangansett & may have buried treasure there
[A]: captain kidd


[Q]: Category: ARLINGTON NATIONAL CEMETERY 
Clue: Since 1937 this world-famous tomb has been protected by an honor guard 24 hours a day
[A]:
tomb of the unknown soldier