Which sequences of transformations performed on rhombus ABCD shows its congruency to rhombus A'B'C'D?
a reflection across the y-axis and then a 180° rotation about the origin
a 90° counterclockwise rotation about the origin and then a reflection across the y-axis
a reflection across the y-axis and then a 90° counterclockwise rotation about the origin
a 90° clockwise rotation about the origin and then a reflection across the x-axis
a reflection across the x-axis and then a 90° clockwise rotation about the origin
