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: RELIGION 
Clue: Some 3 million pilgrims visit this small French town annually
[A]: lourdes


[Q]: Category: SINGING ACTORS 
Clue: In 2001 this Oscar winner sang "Angelina", a romantic tribute to his fifth wife, on his album "Private Radio"
[A]: billy bob thornton


[Q]: Category: WORLD POLITICS 
Clue: 27-year-old Reza Pahlevi has expressed a desire to be this country's monarch
[A]:
iran