We want to see which transformation maps a rhombus into itself and a rectangle into itself.
The correct option D, a rotation of 180° about the center of the figure.
So we have two figures that are parallelograms, but neither are a square. This means that rotations of 90° will not map the figures into the same figures, as for example, for the rectangle, a rotation of 90° changes the length into the width.
But if we apply another rotation of 90°, we have that change again, this means that after two rotations of 90° (or a single rotation of 180°) we map the length into the length and the width into the width (same thing for the rhombus).
Then the transformation that maps the figures into the same figure is a rotation of 180° about the center of the figure, thus the correct option is D.
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https://brainly.com/question/19617363