A sequence of transformations is applied to triangle CDE to create triangle C'D'E'. Select all the sequences of transformations that could be applied to triangle CDE so that triangle CDE is congruent to triangle C'D'E'.

(Choose 3 Choices)

Question 1 options:

a clockwise rotation of 90 degrees and then a dilation be a scale factor of 2

a dilation by a scale factor of 2 and then a reflection across the y-axis

a clockwise rotation of 90 degrees and then a reflection across the y-axis

a translation 5 units down and then a dilation by a scale factor of 2

a translation 5 units down and then clockwise rotation of 90 degrees

a reflection across y-axis and then translation 5 units down