Based on the position of image C'D'E'F' , the transformation of pre-image CDEF was likely done at a A.180° clockwise rotation around point G.
What transformation was done?
Looking at image CDEF, we can tell that image C'D'E'F' is an inverse version of the former.
This can be achieved using a 180° rotation. The fact that the shape is to the right of the original means that this was a clockwise rotation as well.
The distances of CDEF and C'D'E'F' Â to G means that the rotation was done at point G.
In conclusion, option A is correct.
Find out more on transformations at https://brainly.com/question/12623468.