Trapezoid g h j k is rotated about g 90 degrees counterclockwise to form trapezoid g prime h prime j prime k prime. trapezoid g prime h prime j prime k prime is reflected across the line of reflection m to form trapezoid g double-prime h double-prime j double-prime k double-prime.
what is the final transformation in the composition of transformations that maps pre-image ghjk to image g"h"j"k"?

a translation to the right
a reflection across line m
a 90° rotation about point g
a 180° rotation about point g