Trapezoid abcd is congruent to trapezoid . which sequence of transformations could have been used to transform trapezoid abcd to produce trapezoid ? choose exactly two answers that are correct. a. trapezoid abcd was rotated 90° clockwise around the origin and then reflected across the x-axis. b. trapezoid abcd was reflected across the x-axis and then rotated 90° counterclockwise around the origin. c. trapezoid abcd was rotated 90° counterclockwise around the origin and then reflected across the x-axis. d. trapezoid abcd was reflected across the y-axis and then rotated 90° counterclockwise around the origin.