Which transformations could be performed to show that Triangle ABC is similar to Triangle A''B''C''? A. a reflection over the x-axis, then a dilation by a scale factor of 3

B. a reflection over the x-axis, then a dilation by a scale factor of 1/3

C. a 180° rotation about the origin, then a dilation by a scale factor of 3

D. a 180° rotation about the origin, then a dilation by a scale factor of 1/3