Analyze the diagram below and complete the instructions that follow. is isosceles with base . Given that and , show that . A. by the definition of isosceles triangles, so by ASA. Therefore, by CPCTC. B. by the definition of isosceles triangles, so by SAS. Therefore, by CPCTC. C. by the reflexive property of congruence, so by SAS. Therefore, by CPCTC. D. by the definition of isosceles triangles, so by SAS. Therefore, by CPCTC. Please select the best answer from the choices provided