Select the graph that shows a rotation 180∘ about the origin. Four coordinate axes are shown with a different transformation in each. Transformation one: A triangle with vertex pointing up in quadrant one and a triangle with vertex pointing down in quadrant four. Transformation two: A smiley face in quadrant one and an upside-down smiley face in quadrant three. Transformation three: A trapezoid in quadrant two whose parallel sides are horizontal and a trapezoid in quadrant four whose sides are vertical. Transformation four: An L shape pointing right is in quadrant four and an L shape of the same size pointing left is in quadrant three.