In a quadrilateral ABCD, the diagonals intersect at point T. Byron has used the Alternate Interior Angles Theorem to show that angle DAC is congruent to angle BCA and that angle BAC is congruent to DCA. Which of the following Can Byron use prove that side AD is equal to side BC?

A. AC ≈ AC
B. AC ≈ DB
C. DB ≈ DB
D. TB ≈ TD