A sequence of transformations that proves congruence between shape 1 and shape 2 by mapping shape 1 onto shape 2 is a reflection across the y-axis, followed by a A. reflection across the x-axis

B. 90-degree clockwise rotation about the origin

C. 90-degree counterclockwise rotation about the origin

D. 180-degree rotation about the origin

and then a transition 1 unit down. Alternatively, a sequence of transformations that proves congruence between shape 2 and shape 1 by mapping shape 2 onto shape 1 is a reflection of shape 2 about the x-axis followed by a

A. reflection across the y-axis

B. 90-degree clockwise rotation about the origin

C. 90-degree counterclockwise rotation about the origin

D. 180-degree rotation about the origin

and then a translation 1 unit left.