A question that destroyes atheism, apparently.

[Angrboda]

Answer: None of the above.

This is what's known as the argument from reason (aka the argument from rationality). The argument in a nutshell asks, if our brains are the result of a non-rational process, how can we have reliable, rational reasoning.

C.S. Lewis is known for the argument, though others like Plantinga have tossed it around. It's a favorite chestnut, especially with presuppositionalists.

http://en.wikipedia.org/wiki/Argument_from_reason

http://www.asktheatheists.com/questions/...om-reason/