(Pictures included, pls help)Carlos draws a transversal, t, on two parallel lines AB and CD, as shown below: He makes the following table to prove that the alternate interior angles are equal:Which is The missing justification?A) Opposite Interior Angles Are congruent when parallel lines are intersecting by a transversalB) Vertical Angles Formed By Two Intersecting Segments Are CongruentC) Adjacent Angles Formed By Two Interesting Segments Are SupplementaryD) Opposite Exterior Angles Are Congruent When Parallel Lines Are Intersected By A transversal​