Look at the figure below. Which of the following statements could be a step in a proof that vertical angles are congruent? angle APC ≌ angle DPB because angles supplementary to the same angle are congruent to each other. angle APC ≌ angle DPB because angles formed by the same pair of intersecting lines are congruent to each other. angle APC ≌ angle DPB because angles adjacent to the same angle are congruent to each other. angle APC ≌ angle DPB because angles complementary to the same angle are congruent to each other.