I created a quiz last week. Per the admin's request, I added several alternate spellings to one of the fill-in-the-blanks questions. The question's answer is a proper name, which of course has no alternate spelling, but I added them just to be nice

Anyway, I have 3 alternate spellings listed,and I just got an email asking me to add another one. My question is, how many alternate spellings are sufficient. I can't list every spelling of this name.
Thanks.