Two similar triangles below are shown on the coordinate grid: A coordinate grid is shown from positive 6 to negative 6 on the x axis and from positive 6 to negative 6 on the y axis. A triangle ABC is shown with vertex A on ordered pair negative 2, negative 1, vertex B on ordered pair 0, 0, and vertex C on ordered pair 1, negative 3. A triangle A prime B prime C prime is also shown with vertex A prime on ordered pair negative 4, 2 , vertex B prime on ordered pair 0, 0 and vertex C prime on ordered pair 2, 6. Which set of transformations has been performed on triangle ABC to form triangle A′B′C′? Dilation by a scale factor of 4 followed by reflection across the x-axis Dilation by a scale factor of 2 followed by reflection across the x-axis Dilation by a scale factor of 4 followed by reflection across the y-axis Dilation by a scale factor of 2 followed by reflection across the y-axis