Select the correct answer. which sequence of transformations performed on shape i confirms the congruence of shape ii and shape i?
a. a reflection across the y-axis and then a translation 2 units left
b. a 90° counterclockwise rotation about the origin and then a translation 4 units up
c. a 90° clockwise rotation about the origin and then a translation 14 units up and 18 units left
d. a 180° rotation about the origin and then a translation 18 units up and 2 units left