Which of the following describes the transformations performed on the object shown above? a. the object was reflected across the x-axis and shifted -3 units in the x direction and 7 units in the y direction. b. the object was reflected across the x-axis and shifted 7 units in the x direction and -3 units in the y direction. c. the object was reflected across the y-axis and shifted 6 units in the y direction. d. the object was shifted 7 units in the x direction and 6 units in the y direction.