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 rotated 90° clockwise around the origin and then translated 7 units left.
b. rectangle abcd was rotated 90°counterclockwise around the origin and then reflected across the x-axis.
c. rectangle abcd was rotated 90° counterclockwise around the origin and then translated 8 units down.
d. rectangle abcd was rotated 90° clockwise around the origin and then reflected across the y-axis.