Answer:
A dilation followed by a reflection.
Explanation:
Rotations, reflections, and translations are all rigid transformations.
A rigid transformation is a type of transformation of a figure on a plane that would preserve the figure's length. <u>The figure would stay congruent. </u>
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B, C, and D all include rigid transformations.
A dilation would change the figure's size.
A dilation followed by a reflection would result in a figure that is not congruent to the pre-image.
So, a dilation followed by a reflection would produce an image that is not congruent to its pre-image.