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 corresponding sides are congruent.