The common causative agents of echinococcosis （）

The common causative agents of echinococcosis （）
A.Metacestode of Echinococcus multilocularis
B.Cysticercus tenuicollis
C.Metacestode of Echinococcus granulosus
D.Cysticercus pisiformis
正确答案：Metacestode of Echinococcus multilocularis；Metacestode of Echinococcus granulosus