15. In parallelogram ABCD shown, point E and F are located on diagonal BD and point G is located on side perpendicular to BD. Prove: ABEG is similar to DFC

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.