Answer:
A, B, and C
Step-by-step explanation:
If you want to keep a shape congruent, you would only want to change the positioning of said shape.
Dilation is when you change the size of said shape, so it wouldn't work
Reflections are only reflecting a shape across a certain plane
Rotations are only rotating a shape around a point
Translations are literally just moving a shape
Therefore, the answers without dilation would be correct, so A, B, and C
