Select the correct answer. Triangle is reflected across the y-axis and then dilated by a factor of centered at the origin. Which statement correctly describes the resulting image, triangle ? A. The dilation preserves the side lengths and angles of triangle . The reflection does not preserve side lengths and angles. B. The reflection preserves the side lengths and angles of triangle . The dilation preserves angles but not side lengths. C. Neither the reflection nor the dilation preserves the side lengths and angles of triangle . D. Both the reflection and dilation preserve the side lengths and angles of triangle .