If you prove that ∆WXZ is congruent to ∆YZX, which general statement best describes what you have proved?

A.Diagonals of a parallelogram bisect each other.

B. Diagonals of a parallelogram are congruent.

C. Opposite sides of a parallelogram are congruent.

D. The diagonal of a parallelogram connects two non-consecutive vertices.