select the correct answer from each drop-down menu. a sequence of transformations maps triangle abc to triangle a'b'c. the sequence of transformations that maps triangle abc onto triangle a'b'c is a (rotation 180 degrees counterclockwise about the origin, rotation 90 degrees clockwise about the origin, reflection across the line x= -3, reflection across the line y= -3) followed by a(reflection across the y-axis, translation 4 units to the right, reflection across the line y= x, reflection across the line y = -x)