The figure below shows two triangles on a coordinate grid: What set of transformations is performed on triangle ABC to form triangle A′B′C′?

A 180-degree counterclockwise rotation about the origin, followed by a translation 5 units down
A translation 5 units down followed by a 180-degree counterclockwise rotation about the origin
A 270-degree counterclockwise rotation about the origin, followed by a translation 5 units to the right
A translation 5 units to the right, followed by a 270-degree counterclockwise rotation about the origin