2002 Gauss 7 Problem 20

The word "stop" starts in the position shown in the diagram to the right. It is then rotated 180^\circ clockwise about the origin, O, and this result is then reflected in the x-axis. Which of the following represents the final image?

If there are no answer choices shown, enter a numerical answer.

Full credit to this problem is given to the CEMC, you may view all Gauss contests here.