Triangles \[\triangle PQR\] and \[\triangle ABC\] are congruent. The side length of each square on the grid Which of the following sequences of transformations maps \[\triangle PQR\] onto \[\triangle ABC\]? Sequence A Sequence B A \[180\degree\] rotation about point \[R\], then a translation \[2\] units to the right and \[6\] units up. A translation \[4\] units to the right and \[6\] units up, then a reflection over the horizontal line through point \[A\]. Choose 1 answer: Choose 1 answer:is \[1\] unit.