Which sequence of transformations takes figure B to its image B'?
A. a reflection in the y-axis, followed by a translation 6 units up
B. a reflection in the x-axis, followed by a translation 2 units left
C. a reflection in the x-axis, followed by a counterclockwise rotation of 180 about the origin
D. a reflection in the y-axis, followed by a counterclockwise rotation of 270 about the origin