What set of reflections and rotations would carry rectangle ABCD onto itself?
A.Rotate 180°, reflect over the y-axis, reflect over the line y-x
B.Reflect over the y-axis, rotate 180°, reflect over the x-axis
C.Rotate 180°, reflect over the y-axis, reflect over the line y=x
D.Reflect over the y-axis, reflect over the x-axis, rotate 180°