In the figure below, Angle 1 is congruent to Angle 2. What reason can be used to prove that m is parallel to n?

O If a pair of vertical angles is congruent, then the lines forming them are parallel.
O If a pair of angels formed by a transversals is corresponding and supplementary, then the two line are parallel.
O If a pair of angles is congruent and some of their measurements is 180°, then the lines forming the angles are parallel.
O If two lines are intersected by a transversal, and a pair of corresponding angles is congruent, then the two lines are parallel.