Which transformations describe why rectangles ABCD and ABCD are similar?
a) Rectangle ABCD was reflected across the x-axis and then dilated by a scale factor of 15 to form rectangle ABCD.
b) Rectangle ABCD was dilated by a scale factor of 5 and then rotated 90° counterclockwise to form rectangle ABCD.
c) Rectangle ABCD was reflected across the y-axis and then dilated by a scale factor of 5 to form rectangle ABCD.
d) Rectangle ABCD was dilated by a scale factor of 15 and then rotated 90° counterclockwise to form rectangle ABCD.