Lyle graphs triangle ABC on coordinate axes. He performs two transformations on this figure that result in the congruent triangle XYZ. Which series of transformations did Lyle most likely use?
A. a translation left and then a dilation with a scale factor of 3
B. a dilation with a scale factor of 2.5 and then a rotation 180Ëš counterclockwise
C. a rotation 90Ëš clockwise and then a reflection across the y-axis
D. a reflection across the x-axis and then a dilation with a scale factor of 0.25