> A) It's pretty close! You can't allow any one horcrux to be used to resurrect the original file (and why would you that would be useless) but you can allow two horcruxes to do it (so only off by one). Checkmate HP fans.
Not buying it, and the fact that this is the first FAQ is evidence that the author doesn't really either. A better fit to Tom Riddle's horcrux would simply be a lossy compression copy of the file. Which would admittedly be pretty useless, maybe unless the copy contains a lossy copy of your soul.
But then Virgin Galactic is also a pretty good name even though they haven't yet left the solar system. That should be his defense: it's just a cool name.