Assume that lines AC and BD are parallel. Complete each statement.

In terms of m and a number in degrees, p = ?
In terms of m and number in degrees, n = ?
Therefore, in terms of m, n = ?

These statements prove which theorem?
A) p = 90 - m; n = 90 - m; n = p; If parallel lines have a transversal, then vertical angles are congruent.
B) p = 90 - m; n = 90 - m; n = m; If parallel lines have a transversal, then corresponding angles are congruent.
C) p = 90 - m; n = 90 - m; n = p; If parallel lines have a transversal, then alternate interior angles are congruent.
D) p = 90 - m; n = 90 - m; n = m; If parallel lines have a transversal, then same side interior angles are congruent.