Explanation:
Let's eliminate a few answers:
Translation is the movement of the shape without changing the orientation of the points or their angles. It simply slides to a new place on the coordinate plane.
Reflection creates a mirror image of the shape about a line or axis
Dilation increases the size of the shape while retaining the same proportions of of distance between the points that comprise it.
So, is the shape moved? Does it rotate? Is it a mirror image? Does it change size?
It does translate, it is not a reflection, it does not rotate, and it appears to have dilated.