Isosceles triangle ABC is transformed to the image, triangle A'B'C'. Which describes the transformation that could have been applied to triangle ABC?

A dilation could have been applied because all of the vertices decreased by 2 units.
An isometric transformation could have been applied because all of the vertices moved 2 units right and 2 units down.
A dilation could have been applied because all of the vertices increased 2 units.
An isometric transformation could have been applied because all of the vertices moved 2 units left and 2 units up.