question archive ABCD is a kite and point E is the intersection of its diagonals

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ABCD is a kite and point E is the intersection of its diagonals. Which of the following transformations in (a)-(d) can be used to prove that triangle ABC is congruent to triangle ADC using the transformation definition of congruence? Select as many answers as can be true, and explain.

a. The rotation around E of 180 degrees

b. The translation from B to E

c. The rotation around E of 90 degrees

d. The reflection with respect to line AC.