OG（10th)，大全208，谢谢,求助各位牛人

interlove11

208. Teratomas are unusual forms of cancer because they are composed of tissues such as tooth and bone not normally found in the organ in which the tumor appears.

(A)because they are composed of tissues such as tooth and bone

(B)because they are composed of tissues like tooth and bone that are

(C)because they are composed of tissues, like tooth and bone, tissues

(D)in that their composition, tissues such as toothand bone, is

(E)in that they are composed of tissues such as toothand bone, tissues

谁能帮我分析一下为啥A错？求详细的解答，谢谢

Claudinethj

好像是A画线后面的not normally found in the organ in which the tumor appears就近修饰了tooth and bone，意思变为牙齿和骨头不会正常地被发现在器官中，不合逻辑。
答案选D吗？

蓝狮爱我

"such as" and "like" are not interchangeable, answers B and C are eliminated. In D subject-verb agreement rule is violated, as for A it seems only "bone" is midified by the following clause. E must be correct I think.
in addition, a needs an "," . right?