为什么C不对呢？各位大哥大姐

mike125615212

The four-million-year-old fossilized skeleton known as Lucy is so small compared with many other skeletons presumed to be of the same species, and so some paleontologists have argued that Lucy represents a different lineage.

A.presumed to be of the same species, and so

B.presumed to be of the same species that

C.presumed that they are of the same species, and so

D.that they have presumed to be of the same species, so that(B)

E.that they have presumed are of the same species, and

HarrisZheng

skeletons was presumed to be
skeletons can not presume themselves