I selected None because I didn't understand the code and was pretty sure it would return a syntax error...I'm hoping the author was deliberately going for obfuscation here, because if he normally writes code like this then he could be in trouble! 🙂

Oh, and I wouldn't say that "none" and "0" are the same--to my mind, "none" means the code threw an error while "0" means it works but just doesn't return any rows.