Trapezoid ABCD is congruent to trapezoid A′′B′′C′′D′′ . Which sequence of transformations could have been used to transform trapezoid ABCD to produce ​ trapezoid A′′B′′C′′D′′ ​ ? ​ Trapezoid ABCD ​ was reflected across the y-axis and then translated 7 units up. ​ Trapezoid ABCD ​ was reflected across the y-axis and then across the x-axis. ​ Trapezoid ABCD ​ was translated 7 units up and then 12 units left. ​ Trapezoid ABCD ​ was reflected across the x-axis