Polygons QRST and Q′R′S′T′ are shown on the following coordinate grid:

What set of transformations is performed on QRST to form Q′R′S′T′? (5 points)

Group of answer choices

A 180-degree clockwise rotation about the origin followed by a translation 1 unit to the right

A 180-degree clockwise rotation about the origin followed by a translation 1 unit to the left

A translation 1 unit to the left followed by a 270-degree counterclockwise rotation about the origin

A translation 1 unit to the right followed by a 270-degree counterclockwise rotation about the origin