Triangle ABC is congruent to triangle A′′B′′C′′ . Which sequence of transformations could have been used to transform triangle ABC to produce ​ triangle A′′B′′C′′ ​ ? Responses ​ Triangle ABC ​ was translated 7 units down and then 9 units right. ​, , triangle A B C, , ​, , was translated 7 units down and then 9 units right. ​ Triangle ABC ​ was reflected across the x-axis and then translated 9 units right. ​, , triangle A B C, , ​, , was reflected across the x -axis and then translated 9 units right. ​ Triangle ABC ​ was reflected across the y-axis and then translated 7 units down. ​, , triangle A B C, , ​, , was reflected across the y -axis and then translated 7 units down. ​ Triangle ABC ​ was translated 10 units right and then reflected across the x-axis. ​, , triangle A B C, , ​, , was translated 10 units right and then reflected across the x -axis.