Which series of transformations shows that pentagon a is congruent to pentagon b? a. rotate pentagon a 90° clockwise about the origin, reflect it over the x-axis, and translate it 3 units to the left. b. reflect pentagon a over the x-axis and translate it 2 units to the left and 8 units up. c. rotate pentagon a 90° clockwise about the origin, reflect it over the x-axis, and translate it 6 units to the left. d. reflect pentagon a over the y-axis, rotate it 180° about the origin, and translate it 3 units up.