I think I already know the answer but want confirmation

. I am about to LA a quilt that is white, red and black top...the back is black.
I have the backing pinned and was about to lay the white batting..stop to think..umm, maybe this is wrong and I need black batting, which I don't have. I would have to go out and buy retail prices. I need to have two with black backing by the end of February.
I might just have time to order black.
Did I answer my own question