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: WORLD RELIGION 
Clue: The Voodoo of New Orleans owes a debt to this Caribbean nation once known as St. Domingue

Answer: haiti


Question: Category: U.S. RIVERS 
Clue: The Falls of Saint Anthony stop this mighty river from being navigable north of St. Paul, Minnesota

Answer: the mississippi


Question: Category: RELIGIOUS WORKS 
Clue: J.S. Bach's B Minor one of these religious compositions is "heavy", man

Answer:
mass