Adam and Darius provide the following proofs for vertical angles to be equal:Adam's proof: angle 1 + angle 2 + angle 3 + angle 4 = 360° Therefore, angle 2 + angle 3 = 180° (t is a straight line)Hence, angle 1 = angle 3 (Transitive Property of Equality)Darius' proof: angle 1 + angle 4 = 180° (t is a straight line)angle 1 + angle 2 = 180° (PQ is a straight line)Therefore, angle 1 + angle 2 = angle 1 + angle 4 (Transitive Property of Equality)Hence, angle 2 = angle 4 (Subtraction Property of Equality)Which statement is correct?