How was ABCDEFGH transformed to A'B'C'D'E'F'G'H'?

Question

a
dilated by a scale factor of 1/3
b
dilated by a scale factor of 1/2
c
dilated by a scale factor of 2
d
dilated by a scale factor of 3

Answer 1

The correct answer is d. ABCDEFGH was transformed to A'B'C'D'E'F'G'H' by dilating it by a scale factor of 3.