What is the scale factor of AABC to ADEF?
A.0
B.10
C.1
D.5

The answer is C because the scale factor is x1 meaning it doesn’t change

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.