Geometry

Question Analysis:
This question focuses on rigid transformations and their effects on congruence.
The main focus is identifying which transformations preserve congruence and which do not.

Key Concept Explanation:
Congruence is preserved by rigid motions (reflections, rotations, and translations).
Dilation changes the size of a shape, making it only preserve similarity, not congruence.

Step-by-Step Solution:
Option A (Reflection) (Correct): Reflections preserve congruence.
Option B (Rotation) (Correct): Rotations do not change size or shape.
Option C (Translation) (Correct): Translations only move the figure without c...