Which statement about different pairs of angles could be used to prove two
lines are parallel?
A. If any two consecutive interior angles are supplementary, then the
lines are parallel.
B. If any two corresponding angles are complementary, then the lines
are parallel.
C. If any two alternate exterior angles are supplementary, then the
lines are parallel.
OD. If any two alternate interior angles are not congruent, then the
lines are parallel.