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: I'M JUST RUNNING IN FOR... 
Clue: ...20 first-class stamps, which will now cost this much total
[A]: $7.40


[Q]: Category: IF THEY MARRIED... 
Clue: Ms. Khan, once the lead singer of Rufus, feels for Senator Trent & gets this sweet name
[A]: chaka lott


[Q]: Category: MEN OF RELIGION 
Clue: By his own account, this notorious Khmer Rouge leader spent 2 years as a Buddhist monk
[A]:
pol pot