A reflection is a rigid transformation. A rigid transformation does not change the measurement or size of a shape, so the pre-image and the image are <em>congruent</em>.
The angles on the pre-image corresponds to the angles on the image. This also is for line segments.
The answer to this question is option D(<span>In data sets with outliers, either the mean or median can be used to make the data set appear more favorable to their agenda</span>