As the others have said ... read through the rules and if you are still not clear, ask whomever is in charge of the challenge. Every guild/show is different .... some forbid quilts from kits and some allow.
My experience has been that the rules for shows are often poorly written,
to the point that they often do not make sense!
Or that they will say something in one part of the rules ... and almost contradict themselves somewhere else.
Not that the intentionally do that, just that often times they know what they mean,
but don't think of how it reads to someone else.
So Beware!!
Then there are the times you get different answers from different people on the same committee!