Task: Question Answering
Input (English): Ana rolled her wagon down the ramp to reach the playground. There, she and her sister played on the seesaw. Which set of simple machines has Ana used?  
 (A) Lever, pulley, and wedge (B) Pulley, inclined plane, and screw (C) Wedge, wheel and axle, and screw (D) Wheel and axle, inclined plane, and lever
Output (English): D