Triangle ABC is translated by the rule (x + 1, y + 1) and then dilated by a scale factor of 2 centered at the origin. Which statement describes the properties of triangles ABC and A''B''C'' after the transformations? A:∠C and ∠C'' are congruent after both the translation and the dilation.
B:∠C and ∠C'' are congruent after the dilation, but not after the translation. C:segment AC and segment A double prime C double prime are congruent after both the translation and the dilation.
D:segment AC and segment A double prime C double prime are congruent after the dilation, but not after the translation.