Hrm tricky, I feel like I actually don't know much about how Halloween works in other countries (I know for sure for us it's way different than the US, let alone Belgium I have no clue), so I don't know if going trick or treating once is rare because everyone goes, or even just going once is more than most (I'd say a lot of people here just don't do it ever, Halloween is purely costumes and parties). And again a school could do a party, or completely ignore it, could go either way. So I'm gonna guess #3 is the lie, because while it's quite possible, it's also possible that the name Jason could have come from a whole lot of other places, so I feel like the odds are maybe better there. How'd I do?