So, brainlets?

I say C.
And since this is clearly ambiguous here is what I saw. In number-pad notation:
2,5,7 all contain 2 boxes. 3,6,8 contain 3, the pattern wraps around so 1,4 and 9 must have 1 box. Within the groups the progression is with 90 degree anticlockwise turns, So 1-top right, 4-top left, making 9 be bottom left, that is C.