Polygon ABCD will be dilated by a scale factor of 2.2 with the origin as the center of dilation, resulting in the image A′B′C′D′. What will the slope and length of C'D' be?
m = undefined, C′D′ = 13.2 units
m = 0, C′D′ = 6.6 units
m = 0, C′D′ = 13.2 units
m = undefined, C′D′ = 8 units