What is the error in ted's proof?
a. he writes the measure of angles adp and bcp as 60° instead of 45°.
b. he uses the sas postulate instead of aas postulate to prove the triangles congruent.
c. he writes the measure of angles adp and bcp as 60° instead of 30°.
d. he uses the sas postulate instead of sss postulate to prove the triangles congruent.