PLEASE ANSWER CORRECTLY AND DO NOT GIVE AN EXPLINAION BRAINLIEST WILL BE GIVEN

What is the missing step in this proof ?

When you answer this can you explain

(mc 02.03) what set of reflections and rotations would carry rectangle abcd onto itself? reflect over the y-axis, reflect over the x-axis, rotate 180° rotate 180°, reflect over the x-axis, reflect over the line y=x reflect over the x-axis, rotate 180°, reflect over the x-axis rotate 180, reflect over the y-axis, reflect over the line y=x