Line d is parallel to line c in the figure below. Which statements about the figure are true? Select three options.

A. Vertical angles prove that Angle 2 is congruent to angle 5.

B. In the two similar triangles, Angle 1 and Angle 4 are alternate interior angles.

C. Vertical angles prove that Angle 3 is congruent to angle 6.

D. The triangles are similar because alternate interior angles are congruent.

E. In the two similar triangles, Angle 2 and Angle 4 are corresponding angles.

F. The triangles are similar because the corresponding sides are congruent.