Which is the accessory structure of synovial joint？

A.articular surface, articular disc, ligament

B.ligament ,articular capsule, articular surface

C.ligament, articular cavity, articular disc

D.articular cavity ,synovial fold, synovial bursa

E.articular labrum, ligament, synovial fold

正确答案：articular labrum, ligament, synovial fold