ΔDEF ∼ ΔABC. What is the sequence of transformations that maps ΔABC to ΔDEF? A reflection across the y-axis and a translation 4 units down
B. A rotation of 180° about the origin and a dilation with center (0, 0) and scale factor 2
C. A reflection across the y-axis and a translation 2 units down
D. A rotation of 90° about the origin and a translation 2 units down