Rectangle abcd is congruent to rectangle a"b"c"d" . which sequence of transformations could have been used to transform rectangle abcd to produce rectangle a"b"c"d" ? a) rectangle abcd was reflected across the y-axis and then across the x-axis. b) rectangle abcd was translated 8 units left and then 7 units down. c) rectangle abcd was rotated 180° around the origin and then translated 7 units down. d) rectangle abcd was translated 2 units left and then 3 units down.